Have just failed emissions with a P0442 fault. Checked with an OBDII tool and confirmed this as well as getting a Fuel Sys1, CL, Faulty HO2S failure. I took a look at the charcoal canister and found the rubber "J-shaped" tubing connecting the canister to another small hose to be split. On a Sunday, had no access to parts, so I tried a bit of tape until I get parts. Everything else looked ok. After checking again with the OBDII tool, I get the same fault and the MIL is still on. Do I have to clear the fault codes to update the emissions check?? Could this cracked tubing be the only problem?? What about the HO2S fault?? Do I need to R/R the O2 sensor? Any help would be appreciated!!!

Thanks,

mtbahs

 

You have to clear the codes. Then see what comes back.