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1988 Oldsmobile Cutlass 2 dead cyclinders

Tiny
TEFINDER
  • MEMBER
  • 1988 OLDSMOBILE CUTLASS
  • 4 CYL
  • FWD
  • MANUAL
  • 156,000 MILES
I have recently rebuilt this motor, it has about 5000 miles on the rebuild. It started running rough. I checked the fuel injectors by swapping them and found that cylinders 3 and 4 are not firing. I checked for spark and have spark on all 4 but yet by disconnecting the injectors one by one, cylinders 3 and 4 have no affect on idle. I have also checked compression and 210,210,210,212 psi.

Please help
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Friday, April 10th, 2009 AT 1:28 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have power to 3/4 injector harness if so and its not pulsing-check the ground driver of the computer
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Friday, April 10th, 2009 AT 7:26 PM
Tiny
TEFINDER
  • MEMBER
  • 2 POSTS
After replacing the ignition module and computer I found the the Coil housing not the coils was bad. I put a new housing with the old guts and the car runs just fine.

Thanks for the help.
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Monday, April 13th, 2009 AT 10:15 AM

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