For leaks in the evaporative emission system, it depends on the code. For big leaks, look for hoses disconnected, loose gas cap, etc. For small leaks you really need a smoke machine. That allows you to inject white non-toxic smoke at 2 psi, then you search for where it's sneaking out.
There are a lot of oxygen sensor codes. The course of action depends on which code and for which sensor.
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Thursday, August 9th, 2012 AT 12:17 AM