stalling and lack of power

2003 SUZUKI AERIO
130,000 MILES • 4 CYL • 2WD • AUTOMATIC
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i have a suzuki aereo 03 nice car ,it have a problem like fuel pump it stall and loose power wend you least spected and some times work fine i replace fuel pump and filter,swich relays,problem continue i am flat broke and can aford a tecnician repair can any body help tanks.
Aug 4, 2011 at 6:57 PM
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RASMATAZ
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Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
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 it and keep testing.
Sep 22, 2011 at 7:31 AM