good morning guys i hope you can help me , I have a sunfire 1999 and I did the SC reflash speed density, I made some changes etc etc then decided to reinstall the stock file ALPHA-N back to the ECU and i did not do the entire write option , what I used was Write Calibration Only,

and from there I can not communicate with the ecu again (controller unlocked timed out - failed), I have more than 3 ecu so i try with another ECU and the hp tuner read it completely, so in theory my ecu is Fried or damaged , because there is no way to reflash it, if you have any solution please help me, the problem is not that the ecu has been damaged but if I put another ECU i will have to pay 100.00 more of credits