service engine light

1996 DODGE NEON
500 MILES • 4 CYL • FWD • AUTOMATIC
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MONGO82
  • MEMBER
  • 5 POSTS
Have taken care of alt. What numbers are you referring to? 43 code from neon are Po300-01/01 from ADB II . they come up the same ( Misfire no. one cyc ) I have replaced PLUGS, WIRES, COIL PACK and FUEL INJECTOR, have cleaned out fuel rail have checked for vacum leak. Service engine light keeps returning
Aug 6, 2011 at 10:54 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the compression for no.1 cylinder and vacuum leak
Sep 12, 2011 at 3:27 AM
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MONGO82
  • MEMBER
  • 5 POSTS
compression is 180, no vacum leak.
Drove for 130 miles and it came back on, parked it for a day, went out and drove again with out resetting and it went out on it's own? Car runs fine, it's just that light........
Sep 12, 2011 at 3:58 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
That's kind of high of compression on a 4cyl could be carbon in that cyl causing it-recheck it wet and dry tests
Sep 12, 2011 at 12:27 PM
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MONGO82
  • MEMBER
  • 5 POSTS
Motor is complete overhauled, running 180 on all 4, has been checked numerous times, like I said this car runs great, it's just that stupid light...............what is keeping it to come on and go off on it's own?
Sep 12, 2011 at 2:10 PM
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