Ok so I had a check engine light on. i fixed the problem and got the code cleared. I went to inspection and failed for system not ready.i drove like 300 miles and went back and its still the same. Any idea how long or what i need to do to get it so that the system is ready? there aren't any faults when it is scanned it just keeps saying system not ready. thanks

 

take the neg battery wire off for 1-2min