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Help needed diagnosing- will only idle after warm-up 1991 240 200

posted by  runwld2 on  Tue Mar 20 20:32 CST 2012
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last visit: Tue Sep 30 13:11 CST 2014
[RELATED]

If the FPR is leaking, gas will show up in the vacuum hose.

If I were you, I would buy or borrow a fuel pressure tester gauge, they are fairly inexpensive, especially relative to the parts you playing with.
With a gauge you can quickly see if your start problem is due to no or low fuel pressure, and whether the FPR is working correctly. Saves lots of guessing and random parts replacement.
If the fuel delivery was low, I had that on my 84 Turbo. Although the intake pump was running, and drawing the correct current, it was not pumping enough fuel.
However low fuel supply, I would not think, would effect idle, there is plenty of fuel for that, it shows itself at full throttle, when the demand for fuel flow is high.
--
245 Classic M47, 245SE AW IPD bars, 84 1/2 242 Tic IPDbars & Springs, 89 745 16v M46, IPD bars, 89 744 16v M46 IPDbars






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