The engine will not start first time, or more accurately it starts and then immediately dies. The second or third time you try the engine will start and run fine.
Its an OBD2 VR6 and the problem started when I replaced the Air Flow Meter (& Coil pack).
I've checked VAG-COM/VCDS, and no faults are displayed. The air flow meter appears to be working correctly (outputs bigger numbers when throttle is opened). Fuel pressure is fine. Lambda probe seems to indicate the engine is running rich (mostly negative lambda adjustment numbers, measuring blocks 004).
Possibly related - I think the throttle body is out of alignment (at full throttle OBD2 readers say its only 77% open), but I cannot adjust it as there is some ADP ERROR on VCDS.
Any ideas?
Perhaps its a dodgy MAF (it came from Poland...), but I can't seem to figure out why it would only cause the car to die on starting, and then not cause any driveability issues....
VR6 OBD2 wont start first time
in Engine Maintenance and Problems
Posted
Hi,
The engine will not start first time, or more accurately it starts and then immediately dies. The second or third time you try the engine will start and run fine.
Its an OBD2 VR6 and the problem started when I replaced the Air Flow Meter (& Coil pack).
I've checked VAG-COM/VCDS, and no faults are displayed. The air flow meter appears to be working correctly (outputs bigger numbers when throttle is opened). Fuel pressure is fine. Lambda probe seems to indicate the engine is running rich (mostly negative lambda adjustment numbers, measuring blocks 004).
Possibly related - I think the throttle body is out of alignment (at full throttle OBD2 readers say its only 77% open), but I cannot adjust it as there is some ADP ERROR on VCDS.
Any ideas?
Perhaps its a dodgy MAF (it came from Poland...), but I can't seem to figure out why it would only cause the car to die on starting, and then not cause any driveability issues....