Hi guys. I know this has probably been covered 1000's of times, but after searching I can't find much info, or the info I need. My cars a 1992 Obd1 vr6. I plan on doing some pretty basic n/a mods. Cams, manifold, exhaust etc. But how do I go about sorting the software afterwards? Pretty sure these can't be mapped through the old port. So am I best to chip it or? Info appreciated from people that's went down the same route. Cheers
Non of the MK3 VR6 cars can be flashed via the diagnostic port. 1992 car suggests a Bosch LH air flow meter and will be running a M2.7 ECU. This can retuned, but it involves removing the 28 pin chip, replacing with a socket and refitting a one time only flashable EEPROM or if you are doing the work yourself, a multi time flashable EEPROM.
Thanks for that. Do you know anyone in the UK that can carry out this? Also you say it's a one time only flashable EEPROM, does it have to be in the car to be 'mapped'?
If you have a MET16 emulator or similar, and you know the binary addresses to be altered, you can tune the car live and when the calibration is complete, burn to a OTP or MTP EEPROM and permanently fit to the ECU. Aberdeen? Try Star performance.
