Will Disconnecting battery reset the ecu

[rox44s]

The reason i'm asking is because i've had my car REVO tuned and i'm planning on getting a sub and amp installed. Will disconnecting the battery mean i'll lose the REVO settings?

Sorry if this has been already covered...i can't find it anywhere.

[h100vw]

You'll be OK disconnecting the battery. Earth lead first.

Gavin

[Manaz]

You'll be OK disconnecting the battery. Earth lead first.

Negative earth on these cars btw.

To expand on Gavin's comment - the REVO tune is stored in what is called non-volatile memory in the ECU - non-volatile means the contents aren't lost if you take power away from the system.

[noone]

Does this work for clearing codes?

[Guest0608]

Does this work for clearing codes?

Sometimes, depends on the code! Can sometimes sort out some minor issues aswell with a battery reset! -VW-

[Jmac]

Sometimes, depends on the code! Can sometimes sort out some minor issues aswell with a battery reset! -VW-

Otherwise known as a Terminal 30 reset in tech land.
Jmac

[Speed]

Otherwise known as a Terminal 30 reset in tech land.
Jmac

Terminal 30 being power supply