1998 Mitsubishi Galant Engine Idles up and down

Tiny
LEROYKENDRICK
  • MEMBER
  • 1998 MITSUBISHI GALANT
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 169,000 MILES
Had Engine rebuilt 9 months ago. Now the the engine idles up and down constantly. Replaced Spark Plugs and Wires. What is my Problem?
Friday, August 13th, 2010 AT 8:46 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the idle air control motor, vane airflow sensor, throttle position sensor, manifold absolute pressure sensor to include a vacuum leak check and the fuel pressure
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Friday, August 13th, 2010 AT 9:19 PM

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