HESITATION WITH HARD ACCELARATION

1993 Subaru Legacy

Tiny

subarulegacy

April, 29, 2010 AT 9:41 PM

Engine Performance problem
1993 Subaru Legacy 4 cyl All Wheel Drive Manual 180000 miles

This car recently developed a misfire like symptum while applying a hard accelaration in lower rpms.
It has a new set of plugs and fuel filter. What do I do to fix it? Thank you for your help.
Matt

FOUND 2911 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

April, 30, 2010 AT 1:44 AM

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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