Mazda 3 2006 ODB Code P0455, P2187, P0442


Old 12-05-15, 03:32 PM
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Mazda 3 2006 ODB Code P0455, P2187, P0442

Hi, I have a Mazda 3 2006 which read the following:

About a week ago: (p = pending)
P0455 p
P2187 p

A couple days ago:
P2187 p

P0442 p
P0455 p
P2187 p

Also had problems starting the car after filling with Gas tonight.

I'm assuming the issue is a purge valve? If so, any easy way to test a purge valve without vacuum? Seems to be the only way I could find online.
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Old 12-06-15, 06:44 AM
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So folks won't have to look them up:

P0455 Evaporative Emission Control System Leak Detected (gross leak)

P2187 Sys Too Lean at Idle Bank1

P0442 Evaporative Emission Control System Leak Detected (small leak)

I think I would first look for a broken/disconnected hose anywhere in the system (gross leak). I'm not sure that a defective purge valve would throw a "leak" code, although the idle lean code could indicate it's stuck open.

Might also replace the gas cap. Probably a long shot there, but have been known to cause evap codes. Looks like the purge valve runs about 50 bucks, so not really a good place to just toss a part.

Side note question: Do you routinely round up the fill when you're gassing or do you stop at the first "click"?
Old 12-06-15, 06:55 AM
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OP, here's best site for you:

You can also link to Mazda specific situations off it. Otherwise, Mazda forum is always the best place.

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