P0300 slightly rough idle long term fuel trim.

Tiny
ANONYMOUS
  • 1998 CADILLAC CONCOURS
  • 61,000 MILES

P0300 slightly rough idle long term fuel trim high bank 2. Any help would be appreciated

Monday, December 17th, 2012 AT 4:10 PM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 47,000 POSTS

Check fuel pressure first shold be 48-55 psi.

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Monday, December 17th, 2012 AT 4:13 PM

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