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16,324 Posts
obd1 auto to manual swap is no big deal. the trans is not interfaced with the ecu. did that on a ranger,
auto was in the bed of the truck and tech didnt care.
obd2 is finicky and the scanner will fail you long before you get it on the rollers. had that happen on a truck where i had the battery disconnect while i reassembled the truck after
a wreck. tech told me to drive it for 100 miles and come
back.
unless you are using have entire drivetrain for the same vehicle, emissions legal obd2 are a PITA. even then there are no guarantees. buddy pulled entire 3.4 drivetrain from a 4runner and was failed by the ref because not all the monitors were up and running.
auto was in the bed of the truck and tech didnt care.
obd2 is finicky and the scanner will fail you long before you get it on the rollers. had that happen on a truck where i had the battery disconnect while i reassembled the truck after
a wreck. tech told me to drive it for 100 miles and come
back.
unless you are using have entire drivetrain for the same vehicle, emissions legal obd2 are a PITA. even then there are no guarantees. buddy pulled entire 3.4 drivetrain from a 4runner and was failed by the ref because not all the monitors were up and running.