Description
Started with P0446
Over time replaced gas cap, evap solenoid, fuel tank pressure sensor. Required lowering gas tank at one point. All 3 pieces genuine and new AC Delco parts.
After part swap, then getting P0443. (but at least P0446 is gone)
Then found a loose harness on fuse box, tightened down. P0443 is gone.
Now P0446 returned from dead, and once every 10 minutes dash screams "check your gas cap" (cap is on and new)
Ideas?
Discussion
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