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1989 Toyota Corolla Very slow acceleration

Tiny
JESSICOOL
  • MEMBER
  • 1989 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • MANUAL
  • 235,000 MILES
My car is accelerating incredibly slow and doesnt like going past 25mph. It makes a weird noise like air sucking or blowing out. I have been told by a friend that it is not getting enough fuel or the fuel to air ratio is off. How would I go about fixing it and could that be the cause of the slow accelleration? I have recently changed the air filter and the spark plugs.
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Wednesday, March 3rd, 2010 AT 12:39 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hesitation, chugging, lack of acceleration, bogging, etc.

Inspect and test all the following listed below and get back with some results

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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Wednesday, March 3rd, 2010 AT 12:43 AM

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