Please help...PCM codes???
Thread Starter
Former Vendor
Joined: Aug 2001
Posts: 5,798
Likes: 50
From: Dallas & Chicago TX & IL
Please help...PCM codes???
In the last two days I have gotten the same codes after resetting the DIC. Codes P0172 and P0175.
What does it mean? The car started to stumble at or below 1500rpm when cold; from 1500 on up,
it does not feel flat. I parked the car, check everything under the hood cleared the codes again; drove it w/o
any issues but when I got home, I noticed I had those two codes again after 2hours of cool down....what gives. Any suggestions!!! :mad :mad
[Modified by Myhardtop, 11:10 PM 4/4/2002]
What does it mean? The car started to stumble at or below 1500rpm when cold; from 1500 on up,
it does not feel flat. I parked the car, check everything under the hood cleared the codes again; drove it w/o
any issues but when I got home, I noticed I had those two codes again after 2hours of cool down....what gives. Any suggestions!!! :mad :mad
[Modified by Myhardtop, 11:10 PM 4/4/2002]
Safety Car
Joined: Feb 2000
Posts: 3,683
Likes: 0
From: Austria
Re: Please help...PCM codes??? (Myhardtop)
I had the same after heads/cam/injestor install.
Car stumbled during driving and check eingine light flashed a few times.
Then all was OK.
I cleared the codes and had no problem since.
But later I had to adjust the LTFT. I was way too rich.
MAF-T setting to 10% lean fixed it .
Car runs perfect now.
AUTOTAP it and look at your LTFT at partthrottle and your 02`s at WOT.
What do they read??
Michael
Car stumbled during driving and check eingine light flashed a few times.
Then all was OK.
I cleared the codes and had no problem since.
But later I had to adjust the LTFT. I was way too rich.
MAF-T setting to 10% lean fixed it .
Car runs perfect now.
AUTOTAP it and look at your LTFT at partthrottle and your 02`s at WOT.
What do they read??
Michael
Thread Starter
Former Vendor
Joined: Aug 2001
Posts: 5,798
Likes: 50
From: Dallas & Chicago TX & IL
Re: Please help...PCM codes??? (Austrian Vette)
Thanks for the advise. I went out for lunch and cleared all codes, drove the **** out it and checked again...no codes
I call my tuner and he advise to drive it this whole weekend and see if it occurs again. My question is: will this fix
it self; another words, will it go as quickly as it came on it's on.
Thanks :conehead :conehead
I call my tuner and he advise to drive it this whole weekend and see if it occurs again. My question is: will this fix
it self; another words, will it go as quickly as it came on it's on.
Thanks :conehead :conehead
