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Car won't start

Tiny
EINSELE
  • MEMBER
  • 1991 OLDSMOBILE CIERA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 212,000 MILES
We have a 93 Olds Ciera S, it ran rough and had a little vibration when we excelerated. It came out of it and ran fine for about 3 days, went to start it and it would not start. We had it hooked to a machine and it coded that it was the quad driver module. We messed with some wires and it started but ran bad, I think it was a fluke that it started by messing with wires but checked them all anyways and they checked out okay. We replaced the ecm and it is still doing the same thing! Ugh. It will turn over and backfires but not from exhaust, sounds terrible! We have checked everything we know to check, even replaced spark plugs getting fire ok. Any help would be so greatly appreciated.
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Saturday, January 1st, 2011 AT 9:45 PM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure if its within specs to rule out the fuel filter and fuel pump start here
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Saturday, January 1st, 2011 AT 9:48 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
He will do that now. We do here the pump run will that matter?
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Saturday, January 1st, 2011 AT 9:56 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
Fuel pressure checked out ok.
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Saturday, January 1st, 2011 AT 10:17 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If in fact its within specs and injectors are pulsing -check for an ignition spark
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Saturday, January 1st, 2011 AT 10:27 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
Sorry but is there a way to see if injectors are pulsing if the car will not start?
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Saturday, January 1st, 2011 AT 11:25 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
Still at a loss on this car, anyone have any ideas?
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Sunday, January 2nd, 2011 AT 1:15 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
Could it be a bad crankshaft sensor?
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Sunday, January 2nd, 2011 AT 2:44 PM
Tiny
EINSELE
  • MEMBER
  • 35 POSTS
Would someone please try and give me so advice? Crankshaft sensor
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Sunday, January 2nd, 2011 AT 5:16 PM

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