Hello all! I have 02 a4 with a check engine problem. Every time its scanned it comes up with a different problem(code) from the first. Im confused please help!!!!!!!

 

are you clearing them first and waiting to see if they come back?

 

yes, after clearing up the codes different onesappear. These are the latest from advance auto p1296 fuel air meter, p0171 bank1 system too lean. The previous were all four cylinders misfiring, brake booster,abs, and heater malfunction. could this be the cpu?????

 

could be. I say clear those and try again. If performance isnt lacking when the cel isnt on that is.