P2138
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
P2138
About a month ago I started getting this but only after a pull or a big bump. Previously the Throttle harness got caught in the belt and damaged it. I had to solder a bunch of wires. So I figured that was the issue. After redoing it all, the issue was still there. My buddy was able to squeezed under the dash and look at the pedal which he said looked brand new as if it were replaced before I got the car. He unplugged the harness, inspected it then plugged it back in. Took the car out and it was fine for over a month.
Took the car out last night after changing some things. After 3 pulls, it came back....
Form what I read, when the issue is the pedal it happens all of the time, not just only after a pull.
Took the car out last night after changing some things. After 3 pulls, it came back....
Form what I read, when the issue is the pedal it happens all of the time, not just only after a pull.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
https://www.corvetteforum.com/forums...this-time.html
Found this. It mentions cleaning a connector somewhere that gets corroded. Not sure which connector it is though. Hopefully it will be of some help to get you going in the right direction.
Found this. It mentions cleaning a connector somewhere that gets corroded. Not sure which connector it is though. Hopefully it will be of some help to get you going in the right direction.
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
https://www.corvetteforum.com/forums...this-time.html
Found this. It mentions cleaning a connector somewhere that gets corroded. Not sure which connector it is though. Hopefully it will be of some help to get you going in the right direction.
Found this. It mentions cleaning a connector somewhere that gets corroded. Not sure which connector it is though. Hopefully it will be of some help to get you going in the right direction.
Im going to try to clean all the conenctions today after work in hopes that it helps though 
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Back again.... It came back after moving the Tps wire harness slightly to keep it away from the belt. I cut back the wires as far as I could and wired in a new connector with pig tails, and the code is still there. It has stayed on constantly since I first adjusted the harness. Im starting to think I may need to replace the engine harness completely, does anyone know where to source one for a 2005 m6?
Le Mans Master
Joined: Nov 2003
Posts: 8,003
Likes: 249
From: Tampa Fl
St. Jude Donor '12-'13-'14
Ive seen this code also happen on higher HP cars when the intake tube wasn't stiff enough and would start to collapse under WOT from boost. More evident with to long of lengths of rubber hose near the throttle body.
If its mainly doing it during or after WOT, that maybe something to look for, it its happening just cruising while not really boosting, its either the harness or pedal. If it started to fail only after the wires got damaged, it could be that and possibly now not receiving a proper voltage signal.
If its mainly doing it during or after WOT, that maybe something to look for, it its happening just cruising while not really boosting, its either the harness or pedal. If it started to fail only after the wires got damaged, it could be that and possibly now not receiving a proper voltage signal.
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Ive seen this code also happen on higher HP cars when the intake tube wasn't stiff enough and would start to collapse under WOT from boost. More evident with to long of lengths of rubber hose near the throttle body.
If its mainly doing it during or after WOT, that maybe something to look for, it its happening just cruising while not really boosting, its either the harness or pedal. If it started to fail only after the wires got damaged, it could be that and possibly now not receiving a proper voltage signal.
If its mainly doing it during or after WOT, that maybe something to look for, it its happening just cruising while not really boosting, its either the harness or pedal. If it started to fail only after the wires got damaged, it could be that and possibly now not receiving a proper voltage signal.
Burning Brakes
Joined: Jan 2012
Posts: 1,145
Likes: 30
From: Orlando FL
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Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Does anyone know the layout for the wires that would cause the code? Thinking about running new wires from the pcm. I believe it's the purple and green wires that cause the code but I'm not 100% sure
Racer
Joined: Sep 2011
Posts: 376
Likes: 20
From: Alabama
Mine threw this code and it turned out to be my throttle body. I know it went from randomly like once every few months to progressively worse then finally stayed on as soon as i started the car.
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Le Mans Master
Joined: Apr 2011
Posts: 7,820
Likes: 408
From: Montreal
St. Jude Donor '13
After my last build I was getting a code P2135 which looks to be a very similar problem. After searching it turned out to be one of the throttle body wires. I had extended them, although the connections I made seemed good, one wire had just the slightest bit of looseness in the connection. So little that I really couldn't believe it was the problem, but since redoing that connection, I never got the code again.
Just throwing that out in case it might help..... these wires are unbelievable sensitive... connections have to be perfect.
Just throwing that out in case it might help..... these wires are unbelievable sensitive... connections have to be perfect.
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
After my last build I was getting a code P2135 which looks to be a very similar problem. After searching it turned out to be one of the throttle body wires. I had extended them, although the connections I made seemed good, one wire had just the slightest bit of looseness in the connection. So little that I really couldn't believe it was the problem, but since redoing that connection, I never got the code again.
Just throwing that out in case it might help..... these wires are unbelievable sensitive... connections have to be perfect.
Just throwing that out in case it might help..... these wires are unbelievable sensitive... connections have to be perfect.
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
I've read that the spike or drop out or whatever is happening can happen faster than you'll be able to see in HPT, especially on an E40 which is pretty slow (I feel your pain)
Whether it's true or not, I have no idea. Seems like sooner or later you'd spot it though..
Whether it's true or not, I have no idea. Seems like sooner or later you'd spot it though..
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,730
Likes: 93
From: St. Petersburg Florida
Im seriously thinking about putting in the Holley EFI since it comes with a new harness etc.