HP Tuners and diagnostic tests
I know it can be used to modify what sets the SES light to come on, but can you actually turn the tests on and off with it?
I had my car tuned and we turned off the tests for the rear o2s.. I need to turn it back on so that I can pass smog. Im debating buying hptuners or ls1edit, im leaning towards hptuners.
HP Tuners also includes the ability to see which readiness tests are complete as part of the built in scanner


