Car will not power on after flashing tune

Questions about your KTunerFlash V2 Hardware
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projectzero
Posts: 2
Joined: Sat Sep 18, 2021 4:05 pm

Car will not power on after flashing tune

Post by projectzero »

Has anyone had an issue where after flashing to 19.5 on a 18 Civic si the car will just not start? I tried flashing back to stock but now I can’t even get the car to turn on. Literally no power on the dash nothing.

I’ve unplugged the battery completely and The ecu and waited and still nothing.

Anyone in the hive mind have any ideas?
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: Car will not power on after flashing tune

Post by KTuner »

No power on the dash means battery. It was suggested in the software before you started the flash to use a charger on the vehicle.
projectzero
Posts: 2
Joined: Sat Sep 18, 2021 4:05 pm

Re: Car will not power on after flashing tune

Post by projectzero »

You’re right! Thank you. I got a battery charger on the car and it started normally. I’m letting the charger run for 30 mins to see if the battery will get hot to check if it’s a bad battery.

So can you explain to me why it would do that after a flash? I’m new to this and I just wan to get as much knowledge as I can.
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: Car will not power on after flashing tune

Post by KTuner »

It has zero to do with the flash. You had everything powered on and the battery ran down. Honda uses weak batteries.
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