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Old 02-09-2025, 06:34 AM   #1
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Join Date: Oct 2024
Location: San Jose, California
Posts: 110
Good news, and ( potentially ) bad news...

I've driven it around quite a bit this weekend and now have the following statuses, I've put the ones that have changed since I posted in BOLD:

MIL Status : ON
Misfire Monitor : OK
Fuel System Mon : OK
Comp. Component : OK
Catalyst Mon : OK
Htd Catalyst : N/A
Evap System Mon : INC
Sec Air System : INC
A/C Refrig Mon : N/A
Oxygen Sens Mon : OK
Oxygen Sens Htr : OK
EGR System : N/A

Looks like I just have Evap System and Sec Air System monitors to go, hopefully more driving this week on my commute gets me those.

Now the bad news...

When the Catalyst Mon became OK, I also got 2 codes on the reader...

P0420
Catalyst system efficiency below threshold bank 1

P0430
Catalyst system efficiency below threshold bank 2

Another oddity is that the CEL is NOT illuminated on the dash, but the ODBC reader has the MIL Status set to ON now.

I'm assuming this is all bad news given I was hoping to get the car smogged here in CA very soon?

Thanks as always for the help here!
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