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2000 Chevy S-10 hesitate/misfire?

Tiny
SAMCASTANEDAMC
  • MEMBER
  • 2000 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 118,000 MILES
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
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Friday, May 28th, 2010 AT 5:54 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 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.
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Friday, May 28th, 2010 AT 6:39 PM

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