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Rough engine rocking at idle

Tiny
REDHOTCROME9
  • MEMBER
  • 1997 LINCOLN MARK VIII
  • 4.6L
  • V8
  • RWD
  • AUTOMATIC
  • 127,000 MILES
I changed all spark plugs and all eight coils and EGR solenoid and EGR valve and gasket and PCV valve and my engine light keeps coming on and the code is po351 the secondary ignition I check the gap on all spark plugs and all are good
can you help
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Saturday, May 13th, 2017 AT 9:03 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Do checks in picture it can be harness bad, PCM connection etc.
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Sunday, May 14th, 2017 AT 9:03 AM

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