1993 Toyota 4Runner engine missing

1993 TOYOTA 4RUNNER
250,000 MILES • 6 CYL • 4WD • MANUAL
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GRIVERA2522
  • MEMBER
  • 1 POST
hey whats going on
when my 93 4Runner takes off in first gear, it hick ups, it seems to lose power and gain it back real fast, as if i was taping the gas to make it jump, except my foot is on the gas the whole time, it hick ups twice, then continues. second-fifth are fine, i just put a rebuilt engine in it a little over a year ago!!
Jun 29, 2010 at 11:12 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position 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
Jun 29, 2010 at 11:26 PM
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