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1992 olds 98 3.8 supercharged

Tiny
TONWIL1373
  • MEMBER
  • 1992 OLDSMOBILE 98
  • 6 CYL
  • FWD
  • AUTOMATIC
Car runs fine for about 10 miles then when going uphill or trying to speed up it loses power and cuts out bad sometimes even dies. I have replaced fuel pump, fuel filter, fuel pressure regulator, cam sensor, crank sensor, plugs and wires. Problem still exist any ideas what it could be?
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Wednesday, August 24th, 2011 AT 1:27 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the exhaust for restriction -catalytic converter could be clogged, could be cuase by the following below

Oxygen sensor.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
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Wednesday, August 24th, 2011 AT 1:31 AM
Tiny
TONWIL1373
  • MEMBER
  • 2 POSTS
Disconnected exhaust problem still existed was just told could be ignition control mod. Can it be tested?
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Wednesday, August 24th, 2011 AT 1:53 AM

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