Checking The Fuel Injection System
Check the intake system for air leakage.
HINT: Air leakage in the intake system can occur through the evaporative emission system (EVAP) valve, the secondary air solenoid valve or the power brake booster.
Check the fuel pressure.
Test drive the car for approximately 10 minutes.
Check the mass air flow (MAF) sensor. Read off its correction factor. The value must be between 0.8 and 1.2.
NOTE:
There must not be any air leakage when this test is carried out.
Remedy as necessary.
Other information
- see CHECK FOR AIR LEAKS IN THE INTAKE SYSTEM
- see CHECKING FUEL AND RESIDUAL PRESSURES
- see MASS AIR FLOW (MAF) SENSOR, REPLACING
- Continue
Refer to VERIFICATION