1996 Kia Sephia Sephia rpm surges when in gear

1996 KIA SEPHIA
99,000 MILES • 4 CYL • 2WD • MANUAL
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MARS919
  • MEMBER
  • 2 POSTS
The rpm will surge when the vehicle is stopped, to almost 2000rpms and goes up and down. In neutral the rpm is much lower and stable. I have changed fuel filter, plugs, and pcv valve. P0170 code for the check engine light. I cleaned the MAP sensor, disconnected battery and so far the check engine light has remained off for a day of driving. I have also added fuel injector cleaner.
Feb 28, 2010 at 5:47 PM
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DAVE H
  • CAR REPAIR CONTRIBUTOR
  • 13,384 POSTS
Hello .. thanks for the donation .. much appreciated Start by checking for vacuum line leaks on the engine!! P0170 Fuel Trim Malfunction (Bank 1)


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Feb 28, 2010 at 8:48 PM
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