car keeps going into limp mode
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
Originally Posted by pdd000
no code
turn on key, don't start engine
press and hold reset till it does
Then
hold options while pressing fuel 4 times
You see 10-PCM-No codes??
Last edited by see5; Aug 22, 2006 at 05:13 PM.
Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 6,799
Likes: 11
From: dudley MA
Originally Posted by see5
Ok, so if you:
turn on key, don't start engine
press and hold reset till it does
Then
hold options while pressing fuel 4 times
You see 10-PCM-No codes??
turn on key, don't start engine
press and hold reset till it does
Then
hold options while pressing fuel 4 times
You see 10-PCM-No codes??
codes are
p1515 h - control module throttle acuator postion performance
p1516 h- throttle acuator control
p1626 h- theft deterrent fuel enable signal
p1638 h c - generator
c1278 h- tcs-temporarily inhibited
c 594 h c- right rear solinoid open
u 1096 h
u 1064 h
u 1016 h
u 1160 h
c 2120 h c tire pressure
the p1638 h c is the generator- i installed a 200 amp alt three years ago and always got this code ever since with no issues
c2120- i have no tire pressure gauges-never an issue in years
the u codes are from dissconnecting the battery.
Last edited by pdd000; Aug 22, 2006 at 06:13 PM.
Drifting
Joined: Apr 2004
Posts: 1,530
Likes: 250
From: CT
This may not help but for what it's worth, I had a similar problem last winter after installing a new Callaway TB. Turned out to be a bad throttle position sensor. The sensor checked out ok electrically but apparantly had a discontinuity somewhere between idle and wot (this was a brand new GM TPS). Sorry, I don't remenber the codes I had.
Replacing the TPS solved the prob.
May not be your prob but it's a relatively cheap part and easy to install.
Just my .02.
Replacing the TPS solved the prob.
May not be your prob but it's a relatively cheap part and easy to install.
Just my .02.
Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 6,799
Likes: 11
From: dudley MA
Originally Posted by Ls1cobra
Your problem is P1626. this is the only one on there that will put the engine in limp mode. Read the service manuals on the engine section page 426 ( tope left).
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
Originally Posted by pdd000
even though it says 'H 'for history
I have been there with LS2TB. Turned out to be wiring to TB.
This will isolate it if you have a meter:
http://www.gearchatter.com/viewtopic10138.php
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Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 6,799
Likes: 11
From: dudley MA
Originally Posted by see5
Yes- if it were C you would be limping.
I have been there with LS2TB. Turned out to be wiring to TB.
This will isolate it if you have a meter:
http://www.gearchatter.com/viewtopic10138.php
I have been there with LS2TB. Turned out to be wiring to TB.
This will isolate it if you have a meter:
http://www.gearchatter.com/viewtopic10138.php
i installed everything but when it comes to wiring and voltage im confused
