p0068 map/maf-throttle position airflow correlation
Any ideas as to where to start or if this is common?

 

https://www.cobaltss.net/forums/sear...archid=4829883

it works

 

or not.

 

Lol our search engine sux!

 

It is horrid, I'm sick of people pulling the 'use the search' card on this site when it is clearly a POS.

 

google works also

 

thanks for all the help im not getting. im pretty sure i need a maf sensor anyway it has all the symtoms.

 

did you check for a vaccum leak

 

I had that same problem. If I go WOT then the code went up. Changed the map sensor and still had the code. Changed the throttle body and still had it. Although you should clean it up though. Changed MAF sensor and still the problem was there. I found out a small hole on my CAI due to the constant hitting of the ECM with my Fujita CAI. I replaced that and problem is gone. Also, check wiring harness and leaks. I didn't spend money on the parts, they were just spare for troubleshooting purposes.

I saw the GM tables that were used by GM technician, the approach and troubleshoot was the following (kind of a summary): If you have the GM Tech 2 that will help you a lot.

1. Check MAP sensor readings and clean as necessary.
2. Check MAF sensor readings and clean as necessary.
3. Check Throttle body and the readings and clean as necessary.
4. Check Wiring harness for open and short circuits.


Last but not least check your Intake for leaks and vacuum lines. Hope it helps.

Jose

 

I have checked everything. The injen intake I have has some rubbing cuts in it but they are not all the way through I can't find any wiring issues I shook them to hoping to see something on my solus scanner. Idk I'm just honing to chance it it's either that or my tune