Car: Toyota Camry 2002
Check Engine light went on a few days ago.
Checked codes and got these (3):
- P0420 P (“Pending” ?)
I also checked I/M Readiness and got these suspicious-looking values:
CAT: NOT RDY
EVAP: NOT RDY
O2S: NOT RDY
H02S: NOT RDY
NOTE all the other I/M values were N/A
Researching the Codes, it sounded like Ignition, and possibly the O2 sensor on the Catalytic Convertor. I had just had some engine work done by the dealer – actually, replaced spark plugs – so I figured to go back and bitch him out for screwing up my car.
A few days later, before I could engage my Rage, I went back and re-scanned. First I noticed the CEL was now OFF. Scanning, I now I get “NO CODES”, and all the I/M values are now N/A; No more “NOT RDY”.
What do you all make of this?
Should I be concerned now that the CEL is Off, and I get No Codes with a scan?
Or maybe I should take it to AutoZone for their free CEL diagnosis – would their machine be more thorough than mine (Autel MaxioScan 300)??
Would appreciate any suggestions.