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Stumped 89 4 runner

Tiny
TIMHAZELBAKER
  • MEMBER
  • 1989 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • MANUAL
  • 80,000 MILES
Have a 1989 toyota 4 runner runs good at idle but misses during drivin range runs reel good when the gas peddle is on floor v-6 with a standard trainy fuel injected any help?
Wednesday, February 2nd, 2011 AT 3:40 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You sure the clutch is not slipping? If not could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
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.
False air leakage.
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, February 2nd, 2011 AT 4:24 AM

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