System to lean bank one what does that.

Tiny
ANONYMOUS
  • MEMBER
  • 1998 DODGE NEON
  • 150,000 MILES
System to lean bank one
what does that mean
Friday, March 15th, 2013 AT 3:20 PM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
It means bank one is running lean according to 02 sensor. How long since a tune-up? 02 sensors are part of a tune-up. Some other possibilities, fuel issue--vacuum leak, Im sure there are other possible causes.
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Friday, March 15th, 2013 AT 3:42 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
What was the actual code #?
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Friday, March 15th, 2013 AT 3:46 PM

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