Already replaced mine,but a know it all is trying to tell me I could have got a junkyard one instead,but I was told if VIN and mileage don't match,it won't pass emissions check,
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changing vehicle computer
- Thread starter jaf1
- Start date
LOL. No.
It probably won't pass emissions if you drive it down for the test right after plugging the brain in because it takes a while for the computer to build up an average of the sensor data and adjust the mapping to it. But after a while it should be... as good as its going to get based upon the condition of the rest of the engine.
It probably won't pass emissions if you drive it down for the test right after plugging the brain in because it takes a while for the computer to build up an average of the sensor data and adjust the mapping to it. But after a while it should be... as good as its going to get based upon the condition of the rest of the engine.
Modern computers pretty much work right off the bat.
If it don't pass it won't be from the computer.
If it don't pass it won't be from the computer.
On second read, he might mean a paperwork no-go if he has an odometer discrepancy because of the new ICM. But there should be a check box for that...
I'm just asking about VIN and mileage not matching the vehicle ,the rest of it I understand.
ODO discrepancy is common enough, I wouldn't worry about it.
Yeah if it was a title issue I could see their being a problem but for emissions? I doubt it.
Replaced mine,no problems at all ,was told by mechanic I know that if vehicle info didn't match it would be a problem,ordered mine off the Web ,programed my info for $249,got it in 3 days,NAPA was over $300 ,7-10 day wait and then had to have it programed,that's what got me wondering about that,if it didn't matter, then you could just get one from the parts store and slap it on.
really the only reason you need to have one matching the VIN is for programming to sensors..some vehicles have different emissions packages per location in the country..its good practice to have them match to prevent drivabilty problems
Thanks Brad,that's more like what I was hearing from mechanics that I know.
