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Nairaland Forum / Nairaland / General / Car Talk / (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). (4294 Views)
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(SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 6:07pm On Apr 09, 2018 |
I have a 2010 corolla with poor acceleration and rough idle. The codes alternate from P0012 and P0014(ironically opposite codes.... Over advanced timing and sometimes over re tard-d timing. It is a 2010 corolla 1.8 2ZR FE engine). previous change of gasket by the previous owner couldnt be ruled out. So far. Both OCVs open when 12v is applied to them although the resistance across each is more than 10ohms as against 7.9ohms specified by toyota i ve changed the exhaust oil control valve .....not helpful.( couldnt get the intake OCV) Resetting or erasing the codes from ECU gives temporary solution, as it behaves almost normally until the codes reoccur. Auto gurus pls. Please help. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 6:20pm On Apr 09, 2018 |
Vehicle history before this codes popped up? Sounds more mechanical than electrical something to do with the Variable Camshaft Timing and the associated solenoid not working according to specification Location? |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 6:23pm On Apr 09, 2018 |
I just acquired it, that is the problem, but there is a sign suggestive of previous replacement of top gasket. . . AutoElectNG: |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 6:29pm On Apr 09, 2018 |
Just curious....What kind of oil do you use? |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 7:00pm On Apr 09, 2018 |
Total 5000 planning to change to synthetic i am afraid of complications with abrupt change. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 7:01pm On Apr 09, 2018 |
com1234: |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 7:08pm On Apr 09, 2018 |
com1234: 10w40? How many miles since last oil/filter change? |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 7:11pm On Apr 09, 2018 |
AutoElectNG:. I changed it 2 weeks ago, i ve not really travelled since then....so less than 500. It still appears clean. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 7:16pm On Apr 09, 2018 |
com1234: Is that the first usage of 10w40? By the way wrong oil viscosity is just one possibility there are others....only physical inspection will zero in on the actual cause. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 7:24pm On Apr 09, 2018 |
AutoElectNG:. No. That is what the previous owner has been using. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 8:06pm On Apr 09, 2018 |
com1234: That could cause this...wrong oil viscosity run long enough |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by mayor2013: 8:40pm On Apr 09, 2018 |
Wrong oil problem. Any unusual noise at cold start or hot start |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by oluwaseunla(m): 8:59pm On Apr 09, 2018 |
Total quartz 5000 is actually 20W-50. OP, hope you don't have sludge inside that engine. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 10:14pm On Apr 09, 2018 |
mayor2013:. Occasional jiggling (as if one is holding keys) at start up. AutoElectNG:Any recommendation for the wrong oil issue? I.e the way forward. Can other causes like sludges, faulty solenoid and wrong oil viscosity make the timing chain not to be aligned? Cos i am planning to get a mechanic to help me check the timing and also the presence of sludges. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by mayor2013: 2:07am On Apr 10, 2018 |
com1234: Check for sludge first by opening valve cover. Are you sure you are not the engineer handling this job |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 4:00am On Apr 10, 2018 |
com1234: Given your question about the way forward and not linking wrong oil to sludge, please take the time to go through this thread https://www.nairaland.com/3842959/need-professional-advice-n-mechanic Like I said before to pin it down on wrong oil, a physical inspection as suggested by the poster immediately above is the way to go |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 3:55pm On Apr 10, 2018 |
mayor2013: I dont have the tools but i wont mind trying if its safe o. Nevertheless i ve fixed tomorrow with the mechanic, i ll try nd snap d pics. Thanks |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 3:58pm On Apr 10, 2018 |
AutoElectNG:thanks i followed the link and read the whole thread and links in it. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 4:01pm On Apr 10, 2018 |
I will be checking the timing with the mechanic tomorrow , i will also inspect for sludges on the valve cover as said above. Please .....on ensuring the timing is well set any tips. @gazzuzz,@kingreign,@autoElectNG, @mayor2013 , @cardoctor, @9icetoo, @nissparts |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 4:12pm On Apr 10, 2018 |
Please contact me on WhatsApp |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by AutoElectNG: 4:14pm On Apr 10, 2018 |
com1234: It is my personal opinion that an informed driver makes the work of modern automotive technician easier. It has been my pleasure to help you |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by Inception(m): 5:21pm On Apr 10, 2018 |
there is an OCV strainer on that engine. locate it and clean it. it is usually at either the alternator end or power steering pump end on the engine block. another issue may be that timing has not been set properly. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 7:16pm On Apr 10, 2018 |
Inception: I ve been searching for the location of the OCV strainer for the past 30 mins. Please any one with picture of the location / how to get to it should help. (Corolla 2009-2012) |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by foleyankee(m): 10:04pm On Apr 10, 2018 |
Okay this the problem the camshaft sensors connectors a and b they have been interchanged try switching the wire's it happened to me |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 8:54pm On Aug 30, 2018 |
UPDATE: the problem was solved using : the factory repair manual, the inputs here and DIY guide by other notable car talk gurus. The Camshaft gears were kazeemed to be fixed so they were unable to reta. rd and advance when necessary. I replaced them and the problem vanished. I waited several months because i wanted to be very very sure. Thank you all for your inputs. 2 Likes |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by Showboyz: 10:57pm On Aug 08, 2020 |
@com1234 Please boss. I have that problem too. After my intake and exhaust camgear changed due because of rattling sound on cold start. Since then have been experienced p0014.. pls share me your number sir. What should I do? Which mechanic you used sir. Goldencrownmotors@gmail.com |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 8:31am On Aug 09, 2020 |
You can whatsapp me using the number attached to my profile signature below this post. Alternatively you can drop your whatsapp number i will contact you. 1 Like |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by lawlified: 9:24pm On Jan 31, 2023 |
com1234: Hello boss. P0014 is one of the codes my car is displaying. I’m not sure I understand how you fixed it. Please help 1 Like |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by oweniwe(m): 5:53pm On Feb 01, 2023 |
Showboyz: GAZZUZZ: |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by com1234: 1:26pm On Feb 04, 2023 |
lawlified: oweniwe: As stated above, it is usually due to a faulty actuator or camshaft gear in most cases. If you have a good mechanic, it is simple to solve. I am not based in lagos so unfortunately i can't recommend any. It is possible that the " new/ replaced" camshaft gear is also faulty. You should also check that the timing chains are set appropriately. ( I observed that average mechanics get the 2ZR timing wrongly set easily). Other things that can cause the code to appear.... Incorrect Camshaft Timing Faulty camshaft timing control solenoid Failed VVT or VCT solenoid Clogged oil lines( from oil sludge) to the VVT or VCT solenoid Low Engine Oil Low oil pressure A faulty camshaft position sensor Faulty crankshaft positions sensor Damaged wirings Faulty Timing Chain or Timing Belt Faulty Timing Tensioner My suggestion. Get a good mechanic that understands 2ZR engines. In case cant achieve the above or you want to try DIY then : *Check and see if the timing chain is set appropriately ( There are coloured marks on the chain that are used to set this) *Do active test with techstream software ( if you have one) to check the camshaft gear functions or simply replace the camshaft gears with a good one. *For sludged engines... Don't forget to clean the oil strainer. |
Re: (SOLVED)Help With P0012 And P0014 ( Over RE -TARDED And Advance Timing). by lawlified: 7:55am On Feb 06, 2023 |
com1234: Thanks so much boss. Much appreciated |
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