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check engine light on today

Old 06-16-2007, 01:57 PM
  #1  
sevilla
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Default check engine light on today

I got my first check engine light after used my new Xcal2. I dump the code and its: P1151 Lack of HO2S21 SWT LEANS.

What it mean?
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Old 06-16-2007, 02:24 PM
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Brute03
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Default RE: check engine light on today

i would start by checking for vacuum anyleaks or leaks in the intake tube after the MAF, if you don't find any youmay have a faulty sensor so swap the sensors around, clear the code and see if it returns
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Old 06-16-2007, 02:32 PM
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sevilla
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Default RE: check engine light on today

ok... thanks!
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