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spoke spoke is offline
Registered User
Join Date: Dec 2005
Location: Allentown, PA
Posts: 666
OK, still having issues with the fuel pumps. When I turn the key to on, the pumps run for a second then stop.

For some reason, when I start the car, the pumps either run or not. If they run, the car runs good. If they don't run, then the car fires at first (because of the 1 second pump run when key turned to on), then dies.

Sometimes on subsequent re-start tries, I won't hear the 1 second pump run when key turned to on and the engine won't even stumble when trying to start it.

I thought it was the contacts on the yellow relay but not sure now.

I'm trying to diagnose the problem. I have schematics for the car but what I don't have is the location of each of the relays, switches, and such. Does anyone have a layout description of each of the components in the 930?

What I'm looking for in particular are:
1) Air Flow Sensor Charging Pressure Relay (I think this is the yellow relay)
2) Air Flow Sensor Contact
3) Speed Relay
4) Charging Pressure Control Switch

The names of these components come right from my schematics. I don't know where to find these pieces. If I did, it would help in the diagnosis of my problem.

Thanks in advance,

Last edited by spoke; 05-22-2010 at 08:20 PM..
Old 05-22-2010, 08:17 PM
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