Re: 1989, 900s Shuts off and loses power, then it is ok! - Saab General Bulletin Board - Saabnet.com
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Re: 1989, 900s Shuts off and loses power, then it is ok!
Posted by Gforce (more from Gforce) on Wed, 11 Aug 2004 12:49:45
In Reply to: 1989, 900s Shuts off and loses power, then it is ok!, Boomer, Wed, 11 Aug 2004 12:37:42
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That vintage suffers from ECM gremlins that affect the fuel pump relay circuit. It could be the transister driver in the control unit or the fuel pump relay itself. You could rig up a small led light and connect it across the fuel pump wires, when the car starts to act up check that the led is on or off. This would conferm if the ecm or relay is at fault.
The led should light when the starter motor begins to spin the engine over and stay on until the key is moved to the off position.
posted by 12.38.25...
Posts in this Thread:
- 1989, 900s Shuts off and loses power, then it is ok!, Boomer, Wed, 11 Aug 2004 12:37:42
- Re: 1989, 900s Shuts off and loses power, then it is ok!, Rudy M., Thu, 12 Aug 2004 05:52:54
- Re: 1989, 900s Shuts off and loses power, then it is ok!, Gforce, Wed, 11 Aug 2004 12:49:45 <-- Viewing This Message
- Any check engine lights?, RS , Wed, 11 Aug 2004 12:45:38
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