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Postscript: Fuel Pump/Electronic Ignition Mystery 200 1989

posted by  Judge on  Thu Apr 14 06:50 CST 2005
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last visit: Thu Feb 4 14:09 CST 2010
[RELATED]

They call that the RPM signal sensor. A problem there should give you a 1-3-1 fault code. I checked mine by disconnecting at the firewall and checking continuity between two of the three terminals. I had continuity and no fault code so I ruled out this sensor. I assume this is LH fuel injection on a 2.4 motor.

Just wanted to mention two other things, you should have battery voltage (red wire) going into fuse 6.

If you end up solving the problem by attaching an outside ground to terminal 86/2 of the fuel pump relay you are by-passing a Volvo safety feature. The computer will not send a ground signal to the relay unless it detects spark. This prevents you from flooding the engine and also would cut the fuel pump relay in case of an accident which stops the engine. So, if you add an outside ground make sure it is a temporary repair.

Hope this helps.






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