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-   Engine/Transmission/Performance Adders (https://montecarloforum.com/forum/engine-transmission-performance-adders-12/)
-   -   PCM help (https://montecarloforum.com/forum/engine-transmission-performance-adders-12/pcm-help-28679/)

lade03SS 06-05-2011 11:54 AM

PCM help
 
So I got my intake, plugs, tsat, and downpie on, and now I'm throwing 2 codes from my PCM
C1298- PCM class 2 serial dadt link malfunction
C1277 requested torque signal CKT malfunction
What would cause these codes to pop up all of a sudden when i cleaned the PCM and was sure to put the pcm back together the way it came out... Any Ideas on what to look for/do?

zipper 06-05-2011 03:29 PM

What Tstat did you install and why did you remove the PCM?

The only info I could really find was on the C1298 code: diagnostic repair for chassis codes C1254 and C1298 on ... - JustAnswer

lade03SS 06-05-2011 05:13 PM

I installed the 180* SLP thermostat, and I had to remove the old pcm to install the new mounting tray for the CAI. I had the shop I go to run the codes and thats what the code reader said that the designations meant. do you think it could just be a bad ground, or a dirty pcm connection?

zipper 06-05-2011 06:54 PM

It sounds like it has something to do with the PCM's connection. Double check that, clear the codes, and then see what happens.


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