1998 Audi A4 Avant Quattro...Do I have to actually reset the P0102 code?

Question

1998 Audi A4 Avant Quattro...I just cleaned the MAF sensor. Do I have to actually reset the P0102 code or will the Check Engine light go off on it's own??

Answer 1

P0102 MAF (mass airflow) Low input

What can set the MAF to go in low input are false air in the intake air duct to the MAF sensor, poor idle condition due to sparkplugs and a throttle valve stuck open. The MAF has a screen that has tendecy to break into pieces so the throttle opening has to be cleared. You should reset and clear the code, The CK ENG LT can go out on its own as long as the problem is resolved but this will take at least 2 drive cycle start up .