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Old 03-17-2024, 07:54 PM   #1
Voynich
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Join Date: Jul 2023
Location: Southern CA
Posts: 6
P0442 CEL odd smoke test result

Hey guys- I've got a P0442 that keeps coming back. New gas cap was the first stop, CEL came back about 250 miles later. Evap vent solenoid (the one under the driver's side cylinder bank) seems like it's good- pulling no vacuum on start up. Engine seems to run fine, not down on power at all.

Ran a smoke test on the evap system- ran the smoke through the gas cap. Since I had an old cap, drilled a hole in it, and ran the hose through the hole. Not sure how good the seal is, but it's tight, and no smoke came out. Front right removed, fender liner pulled out to keep an eye on all the evap bits stuffed under there. Smoke test ran about 15 minutes, and I noticed that smoke was coming out from next to the steering rack. I can't see the top of the fuel tank, but it looks like the smoke is coming down the side of the tank.

I'm confused- anybody smart out there that can point me in the right direction before I give up and take it to a shop? Smog's due in three weeks....

Thanks!
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