Since July 2021, any ECU with a modified tune will fail a smog test in California; however, if the original ECU code is re-flashed, it's supposed to be okay and should pass a smog test.
My...
Type: Posts; User: Rjm60
Since July 2021, any ECU with a modified tune will fail a smog test in California; however, if the original ECU code is re-flashed, it's supposed to be okay and should pass a smog test.
My...