ECU Reset

[SkyGTRline]

Hey all,

Im keen on resetting my ECU for tunning purposes...

Ive heard of dif ways to do it...

Whats the propper way?

Ive heard you just disconnect the battery and press the brake pedal.. to get all excess power out of the system... Is this the dodgy way..??

Cheers

[MIVEC]

On my car it is simply disconnecting the battery for about 30 minutes.

Plug her back in and all's good.

[leech_]

i do this generally after doing any mods and before a dyno day some people reckon it does nothing others see quite a bit of improvement (well in their eyes)

- Unplug the battery

- Pump the brake a few times till it goes really firm.

- I generally also leave it 12 hours just to make sure all the power is gone eg do it at like 8 or 9 at night and just hook it back up the following morning.

- take the car out for a good strap obviously let it warm up but give it a good boot for a while.

Someone correct me if i am wrong but the purpose of this is to reset the ECU's memory. This causes it to have to re-adjust the timing and general other things. Anyways DO A SEARCH MATCH BOX OWNER lots of posts on it

[SupaFly Skyline]

just diconnect the battery, depress the brake pedal till the light on the ECU turns off, not long about 3~5 secs, and reconnect the battery, then take it for a drive to make it "learn" your driving style,

or disconnect the battery and leave it overnight, reconnect the battery, then take it for a drive to make it "learn" your driving style,

[Gus-]

wat does this do for the car??

[NJR 34GTT]

Over time the ECU apparently drops ignition timing to compensate for things such as bad fuel/hot weather/knock etc. Resetting the ECU resets these values back to their optimums, eventually they will go back.

[Gus-]

ahh k thanks

[SkyGTRline]

Sweet... thanx guys.... will give it ago... and see what happens

[MIVEC]

I'll keep my ears peeled for an explosion