I recently threw a P0171 Code. I pulled the MAF sensor and cleaned it and drove about 10 mi. The light is still on and I am wondering if I should switch to the Omni 4 bar and get a new sensor. I’m at 28-29lbs go boost with full bolt ons. Any help would be greatly appreciated.

I plan to keep the car where it’s at power wise for a bit but would like to have the opportunity to push bigger boost in the future.

 

If you mean that your MAF sensor voltage maxed out and you got a P0171 code(AFR LEAN), then you have to replace the intake pipe to a pipe with larger diameter instead of replace your MAP sensor.

If you mean that your boost pressure over 3 bar(=29 psi) and the MAP sensor voltage maxed out and you got a P0171 code(AFR LEAN), then you have to replace your MAP sensor to a Omni 4 bar.

Just take a log and check which is the cause of the P0171.