1989 Oldsmobile 88 won't hardly start shutters with acceler

  • 1989 OLDSMOBILE 88
  • 6 CYL
  • FWD
  • 120,000 MILES
Ok well as I said won't hardly start and when it does run it just shutters. Poor idle. I was driving on night and I felt a hick-up and the next morning it was worse. By that evening it was almost undriveable. I put on a new fuel filter air cleaner plugs wires and coils. I have recently replaced the water pump. I have checked the fuel presure(not with a gauge I don't have on) but when I press the valve fuel sprayes out all over. Ever time I've had bad fuel pressure in a car it was nothing like this. This really sprays out hard. In my non professional opinion the fuel pressure seems good. I ran the paperclip diagnostics and came back mass air flow sensor, code 34 I changed that and reset the computer and still no dice. It requires a small shot of ether to start and then runs like the timing is bad or the module is bad. But I had the module tested and it came back as good. I've checked for vacuum leaks visually and listened with my ear but I see and hear nothing. I have also tried spraying a little ether around the intake and vacuum hoses. And I got no change in the engine idle. I'm pullin my hair out! I ve had people say it's the knock sensor or still a bad fuel pump but I can't keep throwing money at guesses
Do you
have the same problem?
Monday, December 8th, 2008 AT 5:05 PM

1 Reply

By reading your post, you have covered most of the bases. The one thing I didn't see on you replaced parts list was the crankshaft position sensor. The knock sensor will retard the timing, but it should run reasonablt well. The CPS, on the other hand, controls injector pulse and spark timing. You may want to take a good look at that. Hope this helps.
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Monday, December 8th, 2008 AT 10:48 PM

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