Originally Posted by
cmitchell17
Ok thanks, my thoughts are that its not stock. After wondering why his car was so rich, and realizing that the MAF was missing when he bought it, it hit me. I think the previous owner put in a high flow MAF and changed the MAF calibration, I told him to go unplug the MAF sensor and see how it ran and that appeared to fix it.
But I thought HP Tuners would be able to read the calibration no matter if it was an aftermarket flash or not? Does an SCT or other handheld tuner able to modify the flash and then write it so its unreadable through the ODB port by HP Tuners?