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Error P2138 In Kia Sorento - Car Talk - Nairaland

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Error P2138 In Kia Sorento by emonkey(m): 8:02pm On Aug 26, 2017
Does anyone know someone who can genuinely fix my throttle problem ? It is a Kia Sorento 2008 and the scan brings out error P2138 . Google tells me it is related to the "Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation". However I am advised just changing the item may not be advisable as the problem may only be with the wires for entire throttle system. Anyone who is sufficiently technical savvy and won't take an arm and a leg? I am based in Ibadan.

Gazzuzz, kingreign, adanny01, luvinhubby , Sienna, Ikenna
Re: Error P2138 In Kia Sorento by GAZZUZZ(m): 9:42pm On Aug 26, 2017
emonkey:
Does anyone know someone who can genuinely fix my throttle problem ? It is a Kia Sorento 2008 and the scan brings out error P2138 . Google tells me it is related to the "Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation". However I am advised just changing the item may not be advisable as the problem may only be with the wires for entire throttle system. Anyone who is sufficiently technical savvy and won't take an arm and a leg? I am based in Ibadan.

Gazzuzz, kingreign, adanny01, luvinhubby , Sienna, Ikenna
+234 807 763 1013
Re: Error P2138 In Kia Sorento by emonkey(m): 1:37pm On Aug 27, 2017
GAZZUZZ:

+234 807 763 1013
Okay thanks. I will call him.
Re: Error P2138 In Kia Sorento by emonkey(m): 2:48pm On Aug 28, 2017
Diagnosis done again and readings for throttle pedal appear to be ok , yet the car has no acceleration. Rev counter remains below the 3 mark. Your man Timilehin, thinks it may be the brain box, which is of course a sealed unit. Do you think we are on the right track ? I would hate to throw even more money away chasing the wrong solution. Thanks for your help.
Re: Error P2138 In Kia Sorento by GAZZUZZ(m): 5:21pm On Aug 28, 2017
emonkey:
Diagnosis done again and readings for throttle pedal appear to be ok , yet the car has no acceleration. Rev counter remains below the 3 mark. Your man Timilehin, thinks it may be the brain box, which is of course a sealed unit. Do you think we are on the right track ? I would hate to throw even more money away chasing the wrong solution. Thanks for your help.

right track if harness is intact.
Re: Error P2138 In Kia Sorento by sultaan(m): 7:57pm On Aug 28, 2017
So what was the first thing you or your mechanic did a couple of days before this started?
Re: Error P2138 In Kia Sorento by emonkey(m): 8:54pm On Aug 28, 2017
GAZZUZZ:


right track if harness is intact.
Pls what is harness and where is it located ?
Re: Error P2138 In Kia Sorento by emonkey(m): 8:54am On Aug 30, 2017
sultaan:
So what was the first thing you or your mechanic did a couple of days before this started?

Sorry I am just seeing this.The only work done by my mechanic in the past 6 months was basic servicing which was done over a month ago. Just change oil and filters. It is a rarely used car . Does maimum of 50 km per week most of the year.
Re: Error P2138 In Kia Sorento by emonkey(m): 9:08am On Aug 30, 2017
GAZZUZZ:


right track if harness is intact.

My further research assures me this is a typical Sorento problem which comes out of box and may have nothing to do with brainbox. I was hoping for a mechanic who knows about Kia vehicles.

- Kia says the rev is not supposed to exceed 3000rpm while at standstill which is a preventive measure to avoid overrevving. This checks , so brainbox seems working fine. Since it is also sluggish while moving :
- The next culprit to check should be MAF sensor. Check Air Flow Sensor, the engine could be starved of air.
- Also next check fuel pressure . It must be 46 to 48 psi . If less, then the fuel pump needs changing.

I will have someone do these.
Re: Error P2138 In Kia Sorento by emonkey(m): 10:53pm On Aug 30, 2017
Add Brake light switch to possibility. It caused a major recall . Same issue . Both lights on, loss of power.
Re: Error P2138 In Kia Sorento by GAZZUZZ(m): 11:08pm On Aug 30, 2017
emonkey:


My further research assures me this is a typical Sorento problem which comes out of box and may have nothing to do with brainbox. I was hoping for a mechanic who knows about Kia vehicles.

- Kia says the rev is not supposed to exceed 3000rpm while at standstill which is a preventive measure to avoid overrevving. This checks , so brainbox seems working fine. Since it is also sluggish while moving :
- The next culprit to check should be MAF sensor. Check Air Flow Sensor, the engine could be starved of air.
- Also next check fuel pressure . It must be 46 to 48 psi . If less, then the fuel pump needs changing.

I will have someone do these.

self mediaction.
Re: Error P2138 In Kia Sorento by emonkey(m): 9:35am On Aug 31, 2017
GAZZUZZ:


self mediaction.

Haba! Don't take it like that. Let's look at it instead as brainstorming. There is no human being in the world who knows everything, and sometimes the most foolish suggestion is what eventually solves a problem. Even specialist doctors often need to put heads together to determine how best to treat a patient and even then, they must first listen to the patient for his suggestions . Every advice has its merits. Have a good day.

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