do you need to disconnect the battery when you change chips or swap out the ecu?

 

swaping out an ecu should kill the memory, but if not just undo the battery.

 

Unplugging the ecu is all that needs to be done to clear it. I have changed chips at the track with only shutting the car off and the launch rpm would change but I believe blake had observed that the fuel may not instantly be changed even in open loop unless the ecu is cleared.

 

I was concerned about maybe blowing a fuse or something if thebatery was connected.

 

Naw i never had a problem

 

no, thank god.