1996 Mazda 626 Engine hesitating

1996 MAZDA 626
142,000 MILES • 4 CYL • 2WD • AUTOMATIC
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POLISHPRINCE166
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  • 2 POSTS
Hi,
Engine hesitates when going uphill. I have replaced the 02 sensor, spark plugs and wires, distributor cap and rotor.
My next step is to replace the fuel filter. Am I on the right track?
Thanks
Rob
Jun 15, 2008 at 9:12 PM
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RASMATAZ
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  • 75,992 POSTS
Do you have a check engine light and when the last time you disconnected the battery?

Check the fuel pressure/throttle position sensor/MAF/MAP sensors.
Jun 15, 2008 at 10:26 PM
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POLISHPRINCE166
  • MEMBER
  • 2 POSTS
Yes, the engine light is on. I disconnected the battery then reconnected it yesterday. The engine went off, but then came back on as I drove the car yesterday.
I will do the checks that you suggest, especially the throttle position sensor.

Is it even worth replacing the fuel filter, at the same time, or is that a waste of time/money?
Thanks
Jun 16, 2008 at 9:51 AM
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