2002 Mazda 323

Tiny
YOTAN27
  • MEMBER
  • 2002 MAZDA 323
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 154,000 MILES
HI, MY MAZDA 323F HAVING A PERFORMANCE PROBLEM, THE ENGINE IS JUMPING WHEN I WANT TO ACCELERATE, LOOSING POWER WHEN I DRIVING 60-70 MILES PER HOUR, IT IS NEARLY UNDRIVABLE.I WENT TO MAZDA SERVICE, THEY CHANGED THE COILS, THE FUEL FILTER, NOTHING HAPPEND, AND THE COMPUTER CANNOT FIND ANY PROBLEMS!CAN YOU HELP ME, PLEASE
Thursday, June 24th, 2010 AT 8:24 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft 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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Friday, June 25th, 2010 AT 1:59 AM

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