Need help diagnosing unusual misfiring (FD)
05-24-21, 05:13 PM
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Need help diagnosing unusual misfiring (FD)
Hello all!
I just got my 1995 FD compression tested, and somehow after 94k miles with no rebuild, it is actually running a shade above factory spec. The car runs extremely well as soon as you take the revs up just a tiny bit, and continues to run flawlessly to what I think is around redline (broken tach). However when idling the engine feels like it's misfiring and just has a mildly rough idle. I've gone through the forums and can't find any issues that are the exact same as this, so thought I'd better ask you guys myself. Just changed the plugs (didn't fix it) and dumped some injector cleaner in the tank to no avail. Also possibly normal and unrelated, but once the car warms up there is a strong smell of oil (stronger than I believe these oil burners should smell) is that normal? Cheers.
I just got my 1995 FD compression tested, and somehow after 94k miles with no rebuild, it is actually running a shade above factory spec. The car runs extremely well as soon as you take the revs up just a tiny bit, and continues to run flawlessly to what I think is around redline (broken tach). However when idling the engine feels like it's misfiring and just has a mildly rough idle. I've gone through the forums and can't find any issues that are the exact same as this, so thought I'd better ask you guys myself. Just changed the plugs (didn't fix it) and dumped some injector cleaner in the tank to no avail. Also possibly normal and unrelated, but once the car warms up there is a strong smell of oil (stronger than I believe these oil burners should smell) is that normal? Cheers.
Last edited by alpha_pleb; 05-24-21 at 05:24 PM. Reason: Clarity
05-29-21, 08:51 AM
#2
Arrogant Wankeler
Has it started consuming coolant or oil?
Mine is now ready for a rebuild, there is a water seal on the way out and the set of second hand turbos is losing oil on the intake side. Manifests in occasionally stalling and missing once warm and requiring more idle air.
Mine is now ready for a rebuild, there is a water seal on the way out and the set of second hand turbos is losing oil on the intake side. Manifests in occasionally stalling and missing once warm and requiring more idle air.
06-01-21, 07:39 PM
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It hasn't started consuming any fluids yet to my knowledge, and it doesn't have any issues in regards to stalling. It misfires heavily at start up, and then smooths out the more it's driven, until it almost fixes itself completely. I shut the car off today and I smelled gas for the first time, wondering if there could be an injector problem causing it to run rich?
06-02-21, 10:21 AM
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It hasn't started consuming any fluids yet to my knowledge, and it doesn't have any issues in regards to stalling. It misfires heavily at start up, and then smooths out the more it's driven, until it almost fixes itself completely. I shut the car off today and I smelled gas for the first time, wondering if there could be an injector problem causing it to run rich?
06-02-21, 01:39 PM
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06-02-21, 04:10 PM
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