1997 Chevy Cavalier air fuel mixture

Tiny
PEPSIMAN1957
  • MEMBER
  • 1997 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 139,000 MILES
Ck eng light on code p1071 system lean 1 bank have replaced #2oyx sensor-pickup coil for 1and4bank and throttle position sensor and this code still kicks light on where do I go from here
Saturday, February 27th, 2010 AT 4:37 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

A lean mixture can indicate a vacuum leak in the induction system, often spraying a little starter fluid around the manifold while idling will pick up a leak, the revs will pick up when nit get a sniff of the starter fluid, but just a little as it is very volatile stuff.

Mark (mhpautos)
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Saturday, February 27th, 2010 AT 4:58 PM

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