Rough Running

2000 PLYMOUTH NEON
159,000 MILES • 4 CYL • 2WD • MANUAL
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BOOMER64138
  • MEMBER
  • 2 POSTS
I have a 2000 neon that backfires at low speeed under a load.At high speed runs great.At idol RPM's fluctuate and sometimes race.The engine light is on. Please give suggestions.This car has been tuned up plugs wires filters ect.
Mar 15, 2011 at 10:33 AM
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BOOMER64138
  • MEMBER
  • 2 POSTS
Thanks For any suggestions
Mar 15, 2011 at 10:34 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Have the trouble codes checked? Some of the national brand autostores used to check codes for free.
Mar 15, 2011 at 12:05 PM
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