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    Fuel pressure/flex fuel problems?

    I purchased my 07 PPV Tahoe with 89k on the odometer last May. When I bought it it Was throwing codes for the 02 sensors, the oil pressure sensor, purge solenoid, and something with the throttle body I forgot. I cleaned the throttle body and replaced the sensors to resolve those issues but it...
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    P0446 Thoughts?

    I had a similar problem. I removed both parts and cleaned them as thoroughly as possible. I also removed as much of the rubber tubing as I could and blew compressed air through it. There was so much buildup that I decided just to replace the tubing. (Only About ten doll hairs). I also replaced...
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