I have a 1996 850 with a 2,5l engine.
When the engine starts up nothing seem to be wrong. It idle at 800 - 900 rpm. But when I put it into Drive, it will not react as it should.
I have tested a lot of things. And have found out that the ignition are 30 degrees after TDC#1.
What have I done? Changed all sensors wich are flywheel, camshaft, MAP sensor.
I have checked the timingbelt and its position.
I have meassured the wires between each sensor an the ecu.
I have meassured the signals from the sensors with a scope!
I have adjusted the camshaft wheels.
I have disonnected the alternator.
I have ckecked the flywheel!
Several times when I'm starting up the car it runs normal. And I can drive for hours. But if I use the kickdown and passes an another car on the road, it goes back to the wrong ignition.
The car have never given any error codes!
Are there anyone who can help me? I would be very greatful!
|