I had the same problem and fixed it with only one nut to remove and one easy plug in part the Crankshaft Position Sensor is located between the firewall and the engine on the bell housing which connects the engine to the driveshaft Right on the top shine a light down in there and remove the nut to the left of the sensor sticking up and unplug it check the wires to see if they are rotted mine were all rotted and touching eachother went and bought the part at autozone for $55 plugged it in and it now works perfectly! hope this helps
SOURCE: I need to replace the fuel pump in my 940 Volvo.
Disconnect battery ground strap before beginning to work on the fuel/electrical system. Do not smoke or have anything in the area which can ignite or cause sparks
INSTALLATION
CAUTION :
With tape or rubber caps, protect fuel sender openings from overspray.
SOURCE: 940 GL Stall problem
My 1992 940 Turbo has had stall problems. On the two last occasions I replaced hoses, which solved my problem.
SOURCE: 1995 Volvo 940 flywheel
1995 940 has a crank position sensor mounted at the top rear of the engine which reads cranks position off the flywheel. Though not adjustable, it is a part which fails often causing weird and intermittent no start/hard start problems as well as other faults. While the part is not too expensive, you do have to crawl on top of the engine to see it, and its a pain to replace. Guess you could remove the hood, but I have changed mine without doing so. Get light on the area,and you can do it. If you are having timing too far advanced issues (running on when killing engine or "pinging" on acceleration several other parts may be suspect. Knock sensor, spark plug issues, carbon buildup, O2 sensor, lean condition and more. Good luck.
SOURCE: lambda-sond light stays on, on my Kreg volvo 940.
well you have to change it and your car is not very envirmently friendly with the lambda sensor you will use extra fuel, it will run shity........ get an mouth spaner and loosen it and unplug it and twist it out..
SOURCE: replacing fuel pump on 1992 Volvo 940
look in autozone, look up the part n then click on "view job diagram" hope that helps
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