December 11, 2009Hello. what is the date they changed from OBD 1 to OBD 2 for all cars and trucks? Thanks
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December 11, 2009In the silverado the OBD II ....I think since 1997 !
December 12, 2009Obd1 started in the early 80s and obd2 became mandatory for all cars and trucks in 1996.