So today I do the seatbelt chime mod, and when I am done I start the truck and now my check engine light is on. Take it to autozone they run codes comes up with a p0456-- evap leak. Anyone else have this ?
On the back of the gas cap, you need to put some baby oil on the O-ring. Do that for a few days and your cap with work just fine. I get the code from time-to-time and it's just a dry O-ring.
Also check the vacuum lines on the canister. It is under the truck and in front of the fuel tank.
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