Question about 1992 Jaguar XJ6
The car does not start. Fuel Fail code 22 on the VCM. Fuel pump hums for 1 second. What could be the cause ????????
FF22 is Fuel Pump Drive failure
ECU looks for sognal to the fuel pump relay.
found in jaguar-forum:
"I'm 99% sure that you have a bad fuel pump connector sending a high resistance fault to the CPU. Check your fuel pump connector at the pump. There is a very short harness in the trunk behind the spare tire and the panel behind it. I think the wires are red and blue? Anyway, the tough part is where they tend to go bad is actually at the pump in the top of the tank. You will not be able to get to it unless you have very small hands. You can get to it easier by dropping the tank a little, you probably won't have to remove the lines, just the tank straps. I have seen this connector overheat and burn. Try and clean it up and apply white grease to it.
If you start to have stalling problems in the future, strongly suspect this. Jumping the fuel relay gave me a little extra juice to the pump so I could move the car."
Posted on Mar 31, 2009
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