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I am still dealing with a persistant 565 code. Here is what I have completed so far, in order.
I changed the fuel filter, then the fuel pressure regulator, and the cannister purge solenoid.
The only thing left do is to change every hose from the cannister on out. Before starting that are there any other suggestions as to why this code wont clear?
have you checked the canister purge solenoid on the right side of the engine coming from the purge canister? wires could be burnt, etc..how about the o2 sensor?
Yes the check engine light comes on several minutes after I drive the truck. When I turn it off it stays off when I restart it but always comes back on.