How do you reset your ECU?
When i bought my truck the previous owner had a programmer and had loaded it onto the ECU. Now he had lost the programing unit so i cant unload the software. I have a Hypertech programmer now and i want to be able to tune. But my new programmer errors out because it already has one on it.
Main reason is the already loaded program has the firm shift on and i just installed a new transmission with a custom shift kit. MAN IT SHIFTS HARD now haha Well only into first really.
I was told by Hypertech that only a dealer could reset it. True?
How do you reset your ecu?
You will have to take your truck to a dealer and have them reflash your trucks ecu. This can be good as you will get all the factory lastest updates. After they reflash your ecu drive it for about 200 to 300 miles and then install your programmer.
How to reset Chevrolet ECU or ECM
You need a tech 2 scanner or a j2534 programmer plus a subscriptions to TIS2WEB to get the data that has to be loaded on your ECU.
I had exactly the same problem and a guy on the West Coast reflashed mine for $99 dollars.
You can find them on this website: (I hope it helps) www.speedometergaugerepair.com