OBDII Car Engine Swappers - How did you pass emissions? Dash VIN vs PCM vin
12-27-2013, 10:56 PM
#1
OBDII Car Engine Swappers - How did you pass emissions? Dash VIN vs PCM vin I kinda asked something similar to this earlier but I wanted to narrow it down a bit just incase anyone else has had experience with this. I did a V6 - V8 swap on my Firebird. Emissions testers are scanning the VIN on my windshield sticker to determine the car's information, when they hook up they are unable to see my PCM while Autozone / O'reily's / Advanced is able to read it and the codes.
I am ASSUMING this means there is a mismatch between the VIN O.S. they're looking for on my dash sticker, and the O.S. they're actually recieving with the V8 PCM vs the V6 PCM O.S.
If I change the VIN on the V8 PCM to the VIN on my car, will that solve this issue? I was thinking maybe not because the O.S. will still be a V8 O.S.?
How did you pass emissions?
I am ASSUMING this means there is a mismatch between the VIN O.S. they're looking for on my dash sticker, and the O.S. they're actually recieving with the V8 PCM vs the V6 PCM O.S.
If I change the VIN on the V8 PCM to the VIN on my car, will that solve this issue? I was thinking maybe not because the O.S. will still be a V8 O.S.?
How did you pass emissions?
12-28-2013, 12:00 AM
#2
Where are you located?
It may not be reading the correct vin number and throwing a flag in the computer.
To be legal, most states would require that you get the vehicle inspected for an engine swap. They make sure that it was done correctly, that you used the correct emission parts, and that they are working properly.
Once it passes your car would be reclassified in the system and I believe you get a sticker or tag for your car stating that the car has been changed and should be inspected accordingly for the new requirements.
It may not be reading the correct vin number and throwing a flag in the computer.
To be legal, most states would require that you get the vehicle inspected for an engine swap. They make sure that it was done correctly, that you used the correct emission parts, and that they are working properly.
Once it passes your car would be reclassified in the system and I believe you get a sticker or tag for your car stating that the car has been changed and should be inspected accordingly for the new requirements.
12-28-2013, 09:49 AM
#3
I do a lot with V6 S10s using the original, or similar PCMs. The '96 through '00 models with Vortec V8s I just put the truck's vin it them (often use a V8 truck PCM, since some service number boxes are 6 Cyl only, just 6 injector drivers) those pass just fine, as do the later S10s with LS engines. I have guys in other areas with 0411 boxes in other vehicles going right through with their older vehicle vin in it.
Only problem is guys using hpt complain the box is locked. Since the lock cable credits to an internal id in the PCM, I'm not real sure why they worry about the vin.
Any generic OBD2 tool should have no problem communicating with your Camaro PCM. Wonder why the smog station tool won't? Many places never open the hood.
Only problem is guys using hpt complain the box is locked. Since the lock cable credits to an internal id in the PCM, I'm not real sure why they worry about the vin.
Any generic OBD2 tool should have no problem communicating with your Camaro PCM. Wonder why the smog station tool won't? Many places never open the hood.
