Quote:
Originally Posted by andrewwynn
You def.need to meausure actual fuel pressure.tge crazy thing is wife's car sounded like no spark when yr he problem was weird fuel.
Static pressure was 50 but once I eventually did get it started it would jump from 48-50 or something like that.
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I finally got a fuel pressure gauge that, sort of, fits*. With the fuel pump relay jumped it is showing a steady 48.5 psi at the fuel rail. For comparison, with the motor running on my older X5 it was showing 49.75 psi, pretty close to the 50 psi Andrewwynn suggested. But the engine still does not fire.
What should I look at next?
*I went to two different Harbor Freights, first one didn't have what they said they had, second one guy told me the only way to use their kits was to take the Schrader valve out (which I really didn't want to do), so I ordered an OTC 5630 which was advertised as "for Volvo and BMW" from Amazon. i'm living up in the mountains at the moment and it took a while to get here. It only has one fitting, which screws on, but even using plumbers tape and snugging it with a pair of pump pliers it leaks a bit of fuel on both cars.
FWIW my fuel filter and pressure regulator are new, put on just after this problem cropped up.
02-16-2022, 07:32 PM
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