s5nake5

Can someone please tell me how I can reset my ECU in my 2000 TL.

Thanks in advance
shawn

figueroa1357

what is e c u

Darkshear

iTrader: (1)

just unplug the battery. remove the negative cable form the terminal on the batery for about 5 minutes and your golden.

s5nake5

Isn't there a step by step process where you have to remove the ECU fuse?

LiQiCE

I've heard mixed stories about how long you need to unplug the battery from the car for. I've heard overnight to be 100% sure. Some have even gone as far as saying resetting the ECU makes no difference what-so-ever. I've never reset mine and the car runs as expected after my mods... who knows though. Most people seem to say that if you don't reset the ECU, that it will eventually adjust itself.

Anyways, if you do reset your ECU by removing the battery then you're going to need to have your radio and if applicable your NAVI security codes handy because both will be reset as well.

And figueroa1357, your ECU is the computer chip inside your car that controls timing, VTEC engagement and other various settings on your car. After modding your car, resetting the ECU can force it to immediately re-adjust certain paramaters in your car getting it to take advantage of your mods.

Darkshear

iTrader: (1)

you want to know exactly how long it takes?

open the drivers door just before you disconnect the battery. after you disconnect the negative terminal, watch the dome light fade, and fade, and fade. when its out, THATS how long it takes. Ive done it so many times, ive lost count. And the boys at my dealer confirmed it for me. Overnight is WAYYYY over kill, and even 5 minutes is overkill. Even the helms manual says 3 minutes, "just to be safe"...

There is no backup battery, there is no NVRAM anywhere, thats it.

You could remove the fuse if you wanted to, but this is easier.

And the only reason you should ever reset the ECU is to reset the CEL or similar. The ECU will compensate for anything you do to the car, maby not immiedatly, but it will.

Also be aware that after resetting the ECU your idle will have to readjust itself, so dont freak out when the car idles funny for a few minutes.