Can I get help troubleshooting my 1994 Volvo 940?

10

Asked by Guru6CGDN Mar 19, 2020 at 08:24 PM about the 1994 Volvo 940 Turbo

Question type: Maintenance & Repair

though it has spark and seems to be getting fuel. It started sputtering on
acceleration and wanting to stall. I found a bad wire and replaced it but the
issue continued. The next morning I had a hard time starting it to do the
repairs it ran a very short period. The fault code on the OBD_I  shows 1  1 1
which is no fault, when pressed 3 times all systems seem to respond
properly, I have changed the plugs, wires, fuel pump, fuel filter, timing belt
and tensioner (have changed many timing belts before), fuel regulator,
crankshaft timing sensor, it has compression of 120 120 112 120,

2 Answers

7,845

Is it a turbo? If it has LH 2.4, it uses two fuel pumps. It’s a good idea to replace both the inline and in-tank pumps, as well as the fuel filter. It could also be something to do with the coolant temperature sensor.

1 people found this helpful.
10

I have changed plugs.wires, cap, rotor, wires and have 2 spare coils and they all spark fine. I have also changed the main fuel pump and filter and will change then tank pump today though it only has about 40,000 miles on it though considering there might be something in the tank obstructing the flow. Also changed most of the vacuum lines and hoses as well as cleaning the grounds. Wouldn't the oxygen sensor come up on the OBD- I as a fault? What is the MAF? Thanks for the input!

1 people found this helpful.

Your Answer:

940

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