97 isuzu rodeo

1996 ISUZU RODEO
130,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MICHELINMAN1
  • MEMBER
  • 2 POSTS
I have a 1997 isuzu rodeo 3.2 v6 idles fine and will rev up in park or neutral. When it is in gear will only rev to 2500rpms and then falls to 900 rpm . checked codes only code is low voltage tps circuit a . replaced tps map sensor mas air flow crank sensor and ecm . still have problem ?
Feb 7, 2011 at 10:25 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Could be one of the following below -check and test:

Oxygen sensors.
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.
Feb 7, 2011 at 10:29 PM
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