2000 Chevy S-10 hesitate/misfire?

118,000 MILES • 4 CYL • 2WD • MANUAL
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SAMCASTANEDAMC
  • MEMBER
  • 1 POST
just recently had my computer replaced. took one from a 98 s10 and had it installed in my 2000. i was told my engine light would stay on because of avalve that it didn't have compared to a 98. My truck started to hesitate as if it was misfiring. once i got up to high speed it did ok. but it acted like it didn't wanna get there. no fuel related items showed on diagnostic. just a map sensor. will this make it do this? or what else may be a problem
May 28, 2010 at 10:54 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test all the following listed below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle 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.
May 28, 2010 at 11:39 AM
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