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Old 03-27-2019, 01:37 AM   #4
1thunder
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Join Date: Apr 2004
Location: toronto
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Re: "Tighten Gas Cap" code

remove fuel tank pressure sensor then check wires at connector then if all looks good then check for any moisture in purge line at purge solenoid if moisture in line will need
to clean line ( hard plastic tube) at solenoid & also replace purge solenoid & fuel tank pressure sensor then you must reset PCM or code may return & will never confirm the repair as a successful repair
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