Thread: Mystery misfire
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Old 19th September 2014, 16:08
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MartinClan MartinClan is offline
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Hi Mike

I've been over the wiring very carefully - I don't think it's that.
I think the clue is that it seems to happen once the engine is warm, and then when it has been idling for several minutes. (The engine temperature is rock steady at about 90 according to the gauge.)

I would still like to track down a tool for the diagnostic port to see if that tells me anything. I have also ordered a cheepo fuel pressure gauge. If the pressure regulator is on the blink that should show something.

The only other thing I can think of is the low pressure pump - but that is by the tank so I don't see why that would be affected by a period of idling.

Cheers, Robin
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