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Originally Posted by gtcali
Ok I have smog coming up soon on my 2000 burb. Recently the P0446 Code came back. 'bout a week ago. I cleaned out the EVAP filter and made sure it was clear. Does it take time to for all the checks to balance out before the code is gone?
Oh, also I noticed lately when I open my gas cap, I don't get the suction sound. Can my gas cap be causing the 0446 code as well?
My ODB Scanner will not reset the code.
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Gas cap is one of the first steps
The gas tank has to get vacume and hold it.
Or the code will set. If code will not clear it is a hard fault or still has the problem.
MT