DanBrewer

I have a 2001 Tahoe, an the Check engine light came on, took it in and they said it pulled a code: (evap curcuit)</P>


They cleaned the canister, and reset. Light came back on! Anybody esle having this problem or have any suggestion as what do do next?</P>


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uktahoe

had the same problem with my 99 Tahoe. Ordered a new one (apparently there's only one sensor it can be) while waiting a few weeks for it to arrive, the light went out!
I changed the sensor anyway and the problem has not returned so far.

goinglivestandby

ive been reading up on this and this problem comes in a variety of flavors. i had a p0446 code and everything that i have read comes to this. everyone has a different opinion even the automaker. i think that when people have this problem sometimes they get luck when they fix it and it does not come back. there was a time that the light came off and then came back on on my tahoe. also, the evap system gets dirty and that is what cloggs it-dirt and junk.