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Word of warning: Took my '17 GS in for the annual smog check today. I pulled the Range Finder off the OBDII port about a mile from the test station. Big mistake. The test was rejected because, according to the guy, the computer must have been recently reset and it needed more miles to get a reading for fuel and oxygen. He said to drive it about 30 miles or so. I guess I'll try again next week. Don't make the same stupid mistake I did.
You do need to unplug the Range device a day or two prior to emissions checks. Last week ONSTAR tried to email the status of the Vette and it said that it could not send a status because an aftermarket device was plugged in the OBD II port. Tough Sh*t.
You do need to unplug the Range device a day or two prior to emissions checks. Last week ONSTAR tried to email the status of the Vette and it said that it could not send a status because an aftermarket device was plugged in the OBD II port. Tough Sh*t.
It hasn't interfered with my Onstar reports. Neither has the DSC controller.
I'm in NY as well. I have a Range plugged in on my Silverado. Last year I forgot to unplug it and within a week it killed my battery (I've since added a switch to turn it off when I shut the truck off). When I went for my inspection the truck failed. The tech said it was because of the battery going flat and just needed more mileage cycles to reset the monitors, which I thought was weird as I'd driven it home from Florida after jump starting it! I didn't tell them about the Range, but I bought a code reader, cleared the codes and a week later the truck passed. So, while it's still a bit of a mystery to me it doesn't appear that the Range itself created issues, but the dead battery did.
Yes, once the battery dies or is disconnected the monitors in the PCM have to go through a reset via a drive cycle. However it should have already reset with your drive from Florida.
02-19-2019, 10:44 PM
Range Finder and smog check
