Heres the scoop- 2013 sierra 2500 w a L96.

throwing these codes -
p0341- CMP sensor
p0326 -knock sensor
p0101-MAF sensor

i have replaced - MAF sensor, Cam sensor, timing chain, guides, crank and cam sprockets, VVT solenoid.

timing is good.

when i go drive it it lacks power and the computer reduces power drastically.

not sure what else i can investigate

 

Try the tune/diagnostic forum??
Data logs?

 

I have the same problem. Ever find the fix?

 

Last Activity: Dec 21, 2023 10:19 AM

 

Saw that. Only a year so I was hoping it would pop up in an email lol