Hey guys quick question.i just bought a 01 base tahoe 4.8 power windows and locks originally a police/fire tahoe.dont know how long it sat at the car lot (had to b jumped to test drive) but we drove it an hour home and maybe 10 miles since we have been home.took it to inspection today and obd2 not ready.how long till the system is ready?now my wifes tahoe has been sitting for a long time (8 months)finally able to finish it up this weekend so that to had to be inspected hers passed right through drove hers maybe 15 miles since inital start up on friday battery also replaced along with alternator.figured hers would not be ready either but it passed lol.any reason why her drive cycle was minimal?
obd2 system not ready
- Thread starter h8nbmps
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
afpj
Full Access Member
- Joined
- Sep 16, 2009
- Posts
- 803
- Reaction score
- 355
re your wife's ride...changing the batt usually not enough to completely cycle the PCM so data was likley retained. Your car with a dead batt for who knows how long, prbably cleared all memory including the emissions...a full drive cycle to set those emissions parameters can be 50 or 200 miles depending on driving conditions. Do a combo of city and highway driving is best I have been told to get the emissions parameters ready for state inspection. If you do all city or all hwy will probably take longer IIRC.
Vette66
Full Access Member
It took 45 miles on mine to reset.
