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More 'No Start' questions for the patient brickboarders 900 1992

92 940 GL 191K (all original equipment in FI system)

1. I examined both relays for solder cracks and found none. Then, when I ran the diagnostics in mode three which activates the various FI components, you can hear and/or see both relays clicking (contacts closing). Can I assume that the relays are OK?

2. Reading other posts, someone said that if the Crank Position (RPM) Sensor is bad, there will be no spark. When I ground a plug wire to the block there is a spark when you crank the engine. From this, can I conclude that the Crank Position Sensor is OK?

3. I cannot hear the fuel pump when turning the ignition on, nor can I hear it when I jumper terminal 30 and terminal 87/2 from the main relay recepticle. I have listened from the driver's seat, from the open gas cap, and from on top of the fuel tank after removing the metal access cover in the trunk. Neither of the FI system related fuses is blown. And there are 12 Volts between 30 and 87/2. From all of this, can I conclude that the fuel pump has failed?

4. When I first ran the diagnostics, I got 111 (no error). A couple of weeks later (the car had still not started even once) I got an Idle Sensor signal error (332 or something like that can't remember the exact code). Why didn't that code show up before? And, if the idle sensor is bad, would it prevent the car from starting? Could a bad fuel pump indirectly cause an idle sensor signal error?

This has been going on since Thanksgiving Day. At 15 minutes a week, it's pretty challenging to get it diagnosed, especially for an unexperienced (inept) guy like me. Thank goodness I can drive the 850 to work for a time (love that turbo) but it saddens me to see the 940 so helpless and getting no closer to the 200K milesone. Can you folks help me get it back on the road?






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New More 'No Start' questions for the patient brickboarders [900][1992]
posted by  carmist  on Fri Jan 2 08:04 CST 2004 >


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