GM knew OBD II was coming and that it would require a new generation of PCMs that were faster, more capable and able to be programmed electronically. (PROM) chips held all of the PCMs vital calibration information and operating instructions. What works fine in a brand new car many not work so great after 50,000 or 100,000 miles or real
Mazda Tuning with VersaTuner. VersaTuner is tuning software for Mazdaspeed, Mazda MPS, CX-7, RX-8, Mazda3, Mazda6, CX-5 and MX-5/Miata vehicles. It is a Windows application that allows reflashing/remapping (chip tuning) of Mazda MZR DISI, rotary, Skyactiv-D and SkyActiv-G engine ECUs, data logging, tune editing and diagnostics.Considering ease of use, scan speed, compatibility, and overall value, the best OBD2 scanners are the BlueDriver Bluetooth Pro, TOPDON ArtiDiag800BT, Foxwell NT201, and Motopower MP69033.LT1 PCM Tuning - OBDI/OBDII PCM Tuning/Programming Service. Get Tuned! My Z28. For as little as $100 shipped you can get your basic OBDI PCM settings changed ($100 for chips)! Or receive an OBDI Power Tune via email for just $200, or through the mail for $200 shipped ('92-'93 chips, just $200)! And for OBDII LT1/LS1 PCMs, just $100 or $200