| My Honda Civic Is Very Thirsty, Please Help! by och12(m): 5:50pm On Aug 25, 2021 |
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor 1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by daamazing(m): 5:57pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
https://www.nairaland.com/6280487/catalytic-converter-problems-cheap-solution |
| Re: My Honda Civic Is Very Thirsty, Please Help! by modsfucker: 5:58pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
Try and Service the nozzles, plus make sure all the electrical connections are intact, especially the oxygen sensor, cos without it, the catalytic converter is useless. 3 Likes |
| Re: My Honda Civic Is Very Thirsty, Please Help! by Elsueno: 6:00pm On Aug 25, 2021 |
 The car is already telling ur, u catalyst no dey work Wella....You should have gotten nairaland Google mechanic bypass Sha But it could also be a bad oxygen sensor  |
| Re: My Honda Civic Is Very Thirsty, Please Help! by disloman(m): 6:01pm On Aug 25, 2021 |
Kindly get a tokunbo catalyst or an original one cos the one you got is an inferior one.Don't change anything yet but let your mechanic to service the fuel line first. 1 Like 1 Share |
| Re: My Honda Civic Is Very Thirsty, Please Help! by erico2k2(m): 6:09pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
meet a competent electrician to test ur O2 sensors also ur fuel pressure sensor as well as your engine temp sensors, these are what force ur ecu TO SEND MOR OR LESS FUEL. your cat converter does not have any wiring on it so the nearest wired device is ur o2 sensor.nah there my DIY skills reach! 1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by Structuralman: 10:04pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
Check that both upstream and downstream oxygen sensors are working fine. The air-fuel ratio may be bad. Use another device to scan your car to ensure that no other codes exist. 1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by Okoyedavid3(f): 10:07pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
For the p420 code struggle with same on my Toyota vehicle... Ur since u just fixed a CAT am guessing they also fixed the O2 sensor that's there too. I arrived u check the exhaust pipe the whole of it physically, even the tiniest of hole there like a needle punture can throw up a p0420 code. For the fuel consumption check your fuel trims, you would need a scanner for that. Incase u do have one. Go watch youtube videos on the base line for that. Both long and short term fuel trims. And also our fuel in this country is not that good so don't get your hopes up concerning fuel saving like that. |
| Re: My Honda Civic Is Very Thirsty, Please Help! by weyreypey: 10:09pm On Aug 25, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
thanks for the mention and thank you for being smarter than I am. Personally I was lost and couldn't understand it and then when I was reading what you were saying and I started thinking, maybe it's a headlight because it is equipped with two headlights. Then you said there's a magneto under the flywheel, I didn't have a stinking clue of that. It was definitely be on my pay grade. Could that magneto be the reason that it backfires when turning it off? I understand if you don't know but because I can tell you're smarter than I am, I have to ask. 2 Likes |
| Re: My Honda Civic Is Very Thirsty, Please Help! by Healthquest: 2:29pm On Aug 26, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
and how did u get a tokunbo wit no catalyst? Can't u hold d agent or clearing n forwarding team responsibility? This alone has weak my interest in purchasing ds car... I ve planned to to get a tokinbo of ds vehicle sha. If anyone remove my catalyst.. I will send madness straight der way neh... No two wAys 1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by homeboy205: 4:23pm On Aug 26, 2021 |
och12:
My Honda Civic is Consuming Fuel Excessively!!!
Hello guys, please my 4 cylinder, 1.8 engine Honda Civic, 2009 model, is consuming fuel excessively, on a full tank, I'm getting about 15/16 miles per gallon on city and few highway driving, instead of 29/30 as expected.
I get only 200 miles instead of the standard 383 miles on a full tank, which is appalling.
A full tank of 8k will be exhausted after about 3 to 4 trips to and from mainland-island (ikeja-VI), and this is not economical for me at all.
At times, I question my decision on buying the car as I understood that it and Toyota corolla had the best fuel consumption, based on popular opinion, before I purchased it.
I bought the car as Tokunbo with a mileage of over 100k, also, there was no catalyst in it (the pot was empty), so I purchased and fixed a new catalyst for N40,000, this increased the mileage from 200 miles to just 215 miles on a full tank, which is very infinitesimal.
In addition the Check engine light has refused to clear even with the new catalyst replacement, it has been throwing up error code P0420 “Catalyst System Efficiency Below Threshold (Bank 1).
My mechanic is now suggesting a fuel system overhaul, he suggested checking and/or replacement of the fuel pump, air filter, spark plugs, fuel injector and other accessories, which does not go well with me after buying and fixing a new catalyst for 40k.
Please what can be the probable cause of this anomaly auto experts?
I will greatly appreciate your contributions.
Thank you.
DMechy CocoaOla datjohn dru23 Kufie Mcleo007 naijafinder, scarplanet obekediamondfuto ruby360 gazzuzz nurey kingreign diportivo honmusa princetom1 weyreypey powerexpert jaychubi nurey smartToyota Henry Williams baaliyah obekediamondfuto heavenlybang specialist900 nams77 radautoworks captainking onatisi Naijafinder promotervickky erico2k2 LordGuru1 FSolar nissparts siena cardoctor
How sure are you the catalyst the mechanic bought is the original Mesh catalyst?? Not the net they cut and weld?? Or chinko catalyst I have been there with p420 on my camry big daddy before, I changed bought the 2 sensors but the light still stays until I bought the tokunbo catalyst(Stolen from another car while coming into the country cos mine was stolen at the port too) and erased the check engine light, I didn’t see it again for 4 years now. Car is even with new owner. My point is, they might put a “net” catalyst into the pot for you and you won’t know since it will quench the noise. Also I had a bad mileage during those times. But if the original catalyst was bought, the light will stay off. Mechanic do that to cut down the cost. The total fixing of the NET version for your car will cost only 9k-15k against the 40k you paid. |
| Re: My Honda Civic Is Very Thirsty, Please Help! by chillex8(m): 6:20pm On Aug 26, 2021 |
My calculation with the figures you posted shows your civic does 7km/L of gas. If should be better, say about 10km/L at least.
First, you have a pre catalytic p0420, which suggests catalytic failure.
If you have a clogged catalyst, you will get poor fuel economy.
My suggestion, remove the aftermarket catalyst.
Absence of catalyst can never affect fuel economy..
Secondly, check the activity of your pre catalytic O2 sensor with your scan tool. 2 Likes |
| Re: My Honda Civic Is Very Thirsty, Please Help! by samintegrity(m): 7:34pm On Aug 26, 2021 |
Let me add my own submission, it might help.
I was experiencing serious fuel consumption on my 03 Camry.
I tried all, but no improvement, not until I changed the first O2 Sensor, I think that 02 Sensor is greatly responsible..
Mind you, min doesn't have a catalyst converter too..
I deliberately didn't replace it cos the one I bought for my 07 Camry didn't do much, it only reduce the car sound while moving slowly but the moment I move a bit faster you get to hear the loud noise again which means it was a fake I bought for 41k. |
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 12:53pm On Aug 27, 2021 |
The O2 Sensors were changed before the catalyst so it is not the probable cause. Also, my scanner would bring out the sensor error code if it has any issues, but the only error code seen is the Catalyst. So the sensors are perfectly okay. Thanks for your input. erico2k2:
meet a competent electrician to test ur O2 sensors also ur fuel pressure sensor as well as your engine temp sensors, these are what force ur ecu TO SEND MOR OR LESS FUEL. your cat converter does not have any wiring on it so the nearest wired device is ur o2 sensor.nah there my DIY skills reach! |
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 1:03pm On Aug 27, 2021 |
Thank you for your response. The mechanic made it clear that the new Pot is from China. The cost of a tokunbo pot is overwhelmingly expensive and that was why I settled for the Chinese alternative, however, I'm open to suggestions on how I can get it for a fairly affordable cost. homeboy205:
How sure are you the catalyst the mechanic bought is the original Mesh catalyst?? Not the net they cut and weld?? Or chinko catalyst
I have been there with p420 on my camry big daddy before, I changed bought the 2 sensors but the light still stays until I bought the tokunbo catalyst(Stolen from another car while coming into the country cos mine was stolen at the port too) and erased the check engine light, I didn’t see it again for 4 years now. Car is even with new owner.
My point is, they might put a “net” catalyst into the pot for you and you won’t know since it will quench the noise. Also I had a bad mileage during those times.
But if the original catalyst was bought, the light will stay off.
Mechanic do that to cut down the cost. The total fixing of the NET version for your car will cost only 9k-15k against the 40k you paid. |
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 1:06pm On Aug 27, 2021 |
It was stolen at the port and the check engine light was fraudulently cleared, then it suddenly popped up after some days of purchase. That's why I advise people to carry out due diligence and thorough inspection on Tokunbo cars, just as they would for Nigerian used cars. Healthquest:
and how did u get a tokunbo wit no catalyst? Can't u hold d agent or clearing n forwarding team responsibility? This alone has weak my interest in purchasing ds car... I ve planned to to get a tokinbo of ds vehicle sha.
If anyone remove my catalyst.. I will send madness straight der way neh... No two wAys 1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 1:07pm On Aug 27, 2021 |
Thank you for your inputs. weyreypey:
thanks for the mention and thank you for being smarter than I am. Personally I was lost and couldn't understand it and then when I was reading what you were saying and I started thinking, maybe it's a headlight because it is equipped with two headlights.
Then you said there's a magneto under the flywheel, I didn't have a stinking clue of that. It was definitely be on my pay grade. Could that magneto be the reason that it backfires when turning it off? I understand if you don't know but because I can tell you're smarter than I am, I have to ask. |
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 1:16pm On Aug 27, 2021 |
Thank you for your response, but please why do you suggest that I remove the new catalyst, since it improved the fuel economy by about 20 miles after I fixed it. Also, the oxygen sensors are working fine, my diagnostic tool would have picked up any error in it if they were. chillex8:
My calculation with the figures you posted shows your civic does 7km/L of gas. If should be better, say about 10km/L at least.
First, you have a pre catalytic p0420, which suggests catalytic failure.
If you have a clogged catalyst, you will get poor fuel economy.
My suggestion, remove the aftermarket catalyst.
Absence of catalyst can never affect fuel economy..
Secondly, check the activity of your pre catalytic O2 sensor with your scan tool.
|
| Re: My Honda Civic Is Very Thirsty, Please Help! by och12(m): 1:18pm On Aug 27, 2021 |
Thanks for your response Please was the O2 sensor faulty before you replaced it? or you just replaced it regardless of any issues. samintegrity:
Let me add my own submission, it might help.
I was experiencing serious fuel consumption on my 03 Camry.
I tried all, but no improvement, not until I changed the first O2 Sensor, I think that 02 Sensor is greatly responsible..
Mind you, min doesn't have a catalyst converter too..
I deliberately didn't replace it cos the one I bought for my 07 Camry didn't do much, it only reduce the car sound while moving slowly but the moment I move a bit faster you get to hear the loud noise again which means it was a fake I bought for 41k.
|
| Re: My Honda Civic Is Very Thirsty, Please Help! by erico2k2(m): 1:21pm On Aug 27, 2021 |
och12:
The O2 Sensors were changed before the catalyst so it is not the probable cause. Also, my scanner would bring out the sensor error code if it has any issues, but the only error code seen is the Catalyst. So the sensors are perfectly okay.
Thanks for your input.
Bear in mind the nearest electrical connector to the cat conv is your O2 sensor.u need to physically take em out of the car to volt test them. Mind you also the only way to find out if you get a bad cat conv is to do an Emission test, |
| Re: My Honda Civic Is Very Thirsty, Please Help! by samintegrity(m): 9:41pm On Aug 27, 2021 |
Yes bro, it was faulty and my fuel consumption could send me back to village.. I mean I spend 6500 too fro (like 8times) for a driving distance of Abt 5mins too terrible.. But since the O2 sensor change, it's been soo great och12:
Thanks for your response
Please was the O2 sensor faulty before you replaced it? or you just replaced it regardless of any issues.
1 Like |
| Re: My Honda Civic Is Very Thirsty, Please Help! by Dododawa01: 3:52pm On Aug 28, 2021 |
Fixed another catalyst and for fuel consumption, d highest corolla can give u with city driving is 260 miles. If oyinbo said 460 miles for city but u can't get that in Nigeria due to our fuel. 3 Likes |
