Help Trouble shooting P0440 code
Has anyone diagnosed this code? have not found a lot of info on it. I know it is an emissions code but nothing deeper. Thanks Skip
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RE: Help Trouble shooting P0440 code
po440 is a leak in your evap purge system check your gas cap first. then perform a leak test of the evap purge system should not leak down more than 5 mb over 1 min. if it is indead leaking then install a smoke machine to the system activate the charcole cylinder shutoff valve and start pumping smoke into the system where ever the smoke comes out is your purge system leak.
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