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1989 Toyota Celica 89 Celica 3S-FE engine

Tiny
OGRE1345
  • MEMBER
  • 1989 TOYOTA CELICA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 220,000 MILES
Operates normally when cold but sputters on acceleration when the engine gets warmed up till 2500 rpm, then it accelerates/operates normally until rpm get below 2500. Idles fine when cold and idle gets very rough when warmed up. I think it may be a bad O2 or MAF sensor, can these sensors cause these symptoms?
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Tuesday, June 1st, 2010 AT 2:17 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi Ogre1345, Welcome to 2carpros and TY for the donation.

The following components will contribute to severe hesitation/lack of acceleration

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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Thursday, June 3rd, 2010 AT 2:13 AM

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