Thread: P0421 Code
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Old 08-27-2010, 12:02 PM   #5
snicknc is on a distinguished road
Join Date: Aug 2010
Posts: 50

2002 VUE 3.0L
Default Re: P0421 Code

That's an interesting point. The light came on shortly after my wife put gas in it driving home from the folks we bought it from. I don't think we've gassed it up since then, so it could be bad gas. It also slung the evap canister (aka gas cap loose) code, but that cleared up when I cleared the codes a couple of times.

I'll go ahead and try this non fouler trick, gas it up and drive it an hour or so to get the ready code.

Hopefully I can pass the emissions this weekend to get this thing registered and then finish up with the rest of the maintenance I'm wanting to do.


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