1995 Oldsmobile Cutlass Misfire issue!!! Need help!

1995 OLDSMOBILE CUTLASS
183,000 MILES • 3.1L • 6 CYL • 2WD • AUTOMATIC
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FORDTECH2015
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Hello, I have a 95 Cutlass Supreme. 3.1. Came in with a misfire that I just can't seem to get rid of. Replaced a lot of parts and still the same issue. Checked for codes and did not find any.
Replaced:
Spark plugs
Wires
All 3 coils
Ignition module
Both crank sensors
Removed converter

I checked for spark even on the new ignition parts, got that. Did a compression test, all passed and are within spec. Performed fuel pressure test, all is good with engine off and key forward and at idle. I have no idea on where to go next. Any help would be appreciated.

Thanks!
Oct 6, 2015 at 5:07 PM
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CAR-MAN145
  • ✓ASE Certified Mechanic
  • 321 POSTS
  • ASE Certified Mechanic
I have had a lot of problems with dirty fuel injectors you can try a fuel injector cleaning at a shop or just replace the injector
Oct 7, 2015 at 1:12 AM
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FORDTECH2015
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That was gonna be my next step. The only concern I have is, if I have good fuel pressure can one of the injectors still be bad?

Thanks again!
Oct 7, 2015 at 5:13 AM
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CAR-MAN145
  • ✓ASE Certified Mechanic
  • 321 POSTS
  • ASE Certified Mechanic
Yes just one can be plugged even if you have good fuel pressure
Oct 8, 2015 at 12:33 AM
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