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Engine Stall Advice 900 1991

posted by  jnorris on  Sun Dec 30 09:51 CST 2001
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Hi,
Another guy on in the forum and I have been having trouble with our 940 turbos with intermittent cutouts. We pretty much nave the same symptoms, they are as follows:

-engine cutout while stopped or driving slowly. No sputtering or bucking just cuts right off. Takes a very long time to restart. (traffic tie ups, much shouting)

-occasional cutout while traveling at highway speed. Though the car restarts on its own (without me doing anything)within 10-15 seconds while still coasting.

-tach needle doesn't budge until engine fires up when starting. Someone had said that it should move slightly while the engine is turning over. I don't think mine ever did.

We both have decided to start replacing things until the problem is solved. My question is, what are the most likely culprits? Someone please correct me if I'm wrong.

1. check for loose wires under hood.
2. check/replace Fuses for good connection.
3. check/replace Fuel Pump Relay.
4. check/replace Fuel Injection Relay.
5. check/replace Fuel Pump.
6. replace RPM Sensor.
7. replace Ignition Module.
8. replace Coil.

Lastly, can anyone tell me what the Power Stage is?(A part? A group of parts?, Ignition Module?, Ignition amplifier?, something else?) It may be a stupid question but I just don't know.

Thanks,
john






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