Evaluation: Injection quantity limitation due to inducted air mass (smoke prevention) display

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Passat, 1997 Volkswagen Jetta, and 1996 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.

EVALUATION: INJECTION QUANTITY LIMITATION DUE TO INDUCTED AIR MASS (SMOKE PREVENTION) DISPLAY

Scan tool display	Possible cause	Corrective action
Below 34 mg/H	Insufficient intake air mass inducted	Check EGR and MAF sensor functions, see EXHAUST GAS RECIRCULATION (EGR) AND MASS AIR FLOW (MAF) SENSOR FUNCTIONS, CHECKING
Below 34 mg/H	Excessive exhaust gas recirculation	Check EGR, see EXHAUST SYSTEM, EMISSION CONTROLS