walt

My STI has a COBB turbo-back,first-generation AccessPORT,and legal CAI. It passes visual. The AccessPORT is supposed to disable the monitor that detects the P0420 cat-inefficiency code and set the CEL. At Smog Check (plug-in,no tailpipe test),all monitors showed Ready and it passed. Can anyone explain.

JourdanWithaU

iTrader: (39)

Just because the monitor is disabled doesn't mean that it won't show as ready.

That downpipe should have failed visual.

walt

Thanks. I didn't realize that. So can a disabled monitor also show as Not Ready? Was I lucky?

JourdanWithaU

iTrader: (39)

I'm not keen on how the tuning actually works. I wouldn't think that the monitor is completely disabled. I bet that the threshold for triggering a CEL was changed. So the monitor is still there do what it's supposed to. But any value it reports won't trigger an alarm.


But like I said, an aftermarket downpipe should not have passed.


The smog tech can be crappy with the visual portion. But they can't really fight the OBDII check.

04GG

iTrader: (33)

yes, you were lucky basically. Should not have passed visual period.

walt

I modified the downpipe to make it appear factory. It looks legal and runs clean.

04GG

iTrader: (33)

You should find another topic to talk about then. Nothing to see here.

CHESTON

iTrader: (19)

lol