1991 Dodge Spirit Code 51 lean fuel/air mixture

Tiny
XLT236
  • MEMBER
  • 1991 DODGE SPIRIT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 188,000 MILES
What would cause Code 51 lean fuel/air mixture? I have very little accelaration.
Wednesday, July 29th, 2009 AT 8:43 AM

1 Reply

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Lots of things can be your problem.

Clogged fuel filter
failing fuel pump
bad injectors
fuel pressure regulator
vacuum leak.

I'd start by doing a fuel pressure test.
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Wednesday, July 29th, 2009 AT 10:00 AM

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