arizonajetta
Active member
2002 tdi 1.9 diesel 5spd jetta..... I was replacing a bunch of broken and worn hoses from solenoids when i was replacing my egr valve. And cleaned out the egr cooler. Runs great now. But this code p0412 2nd dairy air injection circuit. Malfunction.... Didnt have any codes before.... I may have put new vacuum line hose in wrong places. .. Any pics out there for this ciruit. And which solenoid is the one that runs this? and possible pics where located?
