Reduced Engine Power

2014Ezmartin
Posts: 3
Joined: Sun Jun 29, 2014 7:09 pm

Reduced Engine Power

Unread post by 2014Ezmartin » Sun Jun 29, 2014 7:30 pm

I got "Reduced Engine Power"...Replaced TBS Module still did it. Engine harness under the Engine cover I found three chafed wires... repaired the wires. Disconnected Battery to "CLEAR"...drove it and came back again... need HELP here I have no clue anymore..... thx

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm

Re: Reduced Engine Power

Unread post by carriedi » Mon Jun 30, 2014 10:58 am

have you scanned for codes since you cleared everything? if you have, what codes do you get now?
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2014Ezmartin
Posts: 3
Joined: Sun Jun 29, 2014 7:09 pm

Re: Reduced Engine Power

Unread post by 2014Ezmartin » Mon Jun 30, 2014 4:32 pm

No....not yet...but will get that right away....$72.00 for diagnostic checks is hurting my pocket right now....

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm

Re: Reduced Engine Power

Unread post by carriedi » Mon Jun 30, 2014 5:59 pm

a couple of scans at that price and you could buy your own scanner from most parts stores or stores like walmart
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2014Ezmartin
Posts: 3
Joined: Sun Jun 29, 2014 7:09 pm

Re: Reduced Engine Power

Unread post by 2014Ezmartin » Tue Jul 01, 2014 2:41 pm

I got codes P0496 and P2138 and P1125....

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm

Re: Reduced Engine Power

Unread post by carriedi » Tue Jul 01, 2014 3:14 pm

not knowing year, make modle or engine size I can tell you that :

p0496 is for an EVAP problem, system flow during non-purge
p01125 if fot the accelerator pedle position system and
p01125 says that APP sensor 1-2 correlation has a problem.

so you will need to look at the readings of the two sensor readings for the APP. you can do that with a scanner or a dvom or lab scope and read the voltage for the sensors.

check for wires that maybe rubbing somewhere. Insulation cracking leaving wires exposed to either ground or other wires
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TerryAuto
Posts: 313
Joined: Fri Dec 11, 2009 8:48 pm

Re: Reduced Engine Power

Unread post by TerryAuto » Tue Jul 01, 2014 9:10 pm

Sounds like one if two common problems.
1. The accelerator position sensor is bad. That is part of the gas pedal.
2. There are wires inside the left side of the dash that get corroded. Open the drives side door, on the side of the dash is a panel that can be removed. Take it off, disconnect the large wiring harness connector and look for green terminals. If so, clean then off, apply some silicone grease, clear the codes and see if that fixes it. FYI. Many of the large national parts store chains will scan codes for free.

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