Engine misfiring

1997 CHEVROLET CAVALIER
208,352 MILES • 2.2L • 2WD • AUTOMATIC
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ASHLIKESCHEVYS
  • MEMBER
  • 1 POST
Hello, it only does it after the car has warmed up. I have replaced the spark plugs, ignition coil, spark plug wire set, torque strut mount, and o2 sensor and it is still misfiring. It drove fine for a second than went right back to misfiring.
Jan 2, 2020 at 2:51 PM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good evening,

I would start by checking the fuel pressure to be sure sufficient fuel is getting to the injectors.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

You can rent a tester at a parts store for this test.

Low fuel pressure is the most common reason for misfires.


https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Roy
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Jan 2, 2020 at 3:21 PM
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