Question about Chevrolet Cavalier
Think your guy changed O2 Sensors ,
but didn't consider that your sensors PO172
is rich,because it is correcting for a lean condition
I'am going to really guess here
The EVAP has leaks,but no codes set,
partially driving the system lean (Vacuum Leaks)
The Converter is sort of out there as
not working well either
I would smoke the EVAP System and everything else,
intake manifold etc
I think you will find this by MAYBE even just looking
for a bad hose leak
Is that data from your mechanics scanner ?
What is their theory ?
Bank 1 has a vacuum leak I think !! ??
Posted on Mar 19, 2011
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Posted on Jan 02, 2017
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