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 Answer

  • Tiny
  • hmac300
  • Expert
  • 41,647 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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