Airfrix
New member
- Joined
- Jan 15, 2010
- Location
- Somewhere in Europe
Hello,
Few days ago after long (half a year) period I started my car. Started right away, just with a touch to the key. After idling perfectly for ~5mins I drove it like 20meters and got the image, that few cylinders stopped working, the car died.
After testing found out that: fuses below radio good, fuel pump works, radio interference relay works, resistor pack good, no broken/burnt wires (ringed with tester, signal gets through), spark is fine.
Injectors should be getting +12v through one wire, and ECU sends ground signals through other wire.
Problem is, that I get +12v through both wires, even after I turn ignition on, even thou ECU signal wire should be reading like 0.4v with ignition on(tested on other 940T), seems like ECU does not send any signals to injectors. If I manually connect ECU signal wire to ground, injectors work, so wire is fine.
Tried changing ECU from other fully working car - nothing changed... still no signal to injectors...
Any ideas ? What commands ECU to stop injecting fuel ? Maybe some kind of relay, sender or other thing ?
Few days ago after long (half a year) period I started my car. Started right away, just with a touch to the key. After idling perfectly for ~5mins I drove it like 20meters and got the image, that few cylinders stopped working, the car died.
After testing found out that: fuses below radio good, fuel pump works, radio interference relay works, resistor pack good, no broken/burnt wires (ringed with tester, signal gets through), spark is fine.
Injectors should be getting +12v through one wire, and ECU sends ground signals through other wire.
Problem is, that I get +12v through both wires, even after I turn ignition on, even thou ECU signal wire should be reading like 0.4v with ignition on(tested on other 940T), seems like ECU does not send any signals to injectors. If I manually connect ECU signal wire to ground, injectors work, so wire is fine.
Tried changing ECU from other fully working car - nothing changed... still no signal to injectors...
Any ideas ? What commands ECU to stop injecting fuel ? Maybe some kind of relay, sender or other thing ?