Ecu Reset On R32 Rb20det

[partyboy73]

I have read many topics on this and was wondering if anyone knows 100% how this is done properly... I'm about to replace a few things (O2 sensor, front/dump pipe, clean AFM, clean Air filter etc) and got the idea that resetting the ECU was the done thing. I have researched and found a few variations such as: "disconnect neg. battery terminal, pump the brake several times then reconnect terminal" or "disconnect pos. terminal hold down brake for 20 mins. wait an hour or so then reconnect, let car idle for 20 mins. then drive for 30-45 mins" or theres "disconnect neg. terminal pump brake for 2-3 mins. then leave for 24 hrs before reconnecting and driving"... Does anyone know for sure which of these is right if any or what the right procedure is?

[nizmonut]

un plug your sensors, pull the battery terminal, plug in all your sensors(for example the afm will default back to how it was if it isnt plugged in before the ecu is reconnected) get a 10ml spanner and move the CAS back to the middle of its adjustment...stand on the brake pedal for a good minute or so, then reconnect battery..

the car will run rough for a little while (15 20 minutes of driving) as the ecu learns all the settings again,

make sure the car is warmed up when you do this as the timing is immediatley retarded for cold startup

Edited July 7, 2008 by nizmonut

[partyboy73]

un plug your sensors, pull the battery terminal, plug in all your sensors(for example the afm will default back to how it was if it isnt plugged in before the ecu is reconnected) get a 10ml spanner and move the CAS back to the middle of its adjustment...stand on the brake pedal for a good minute or so, then reconnect battery..

the car will run rough for a little while (15 20 minutes of driving) as the ecu learns all the settings again,

make sure the car is warmed up when you do this as the timing is immediatley retarded for cold startup

Cheers for the info mate but just a few questions... Does it matter which terminal you disconnect? Also moving the CAS back to centre... do I need to disconnect this and what exactly will this do? Will I need to adjust anything like idle?

Cheers

[QWK32]

no need to disconnect any sensors or move the cas, you don't want to be moving the cas unless you have a timing light to check the setting. disconnect the battery, step on the brake pedal a few times (this is just to use you brake lights to use up any residual current). thats it, just reconnect the battery and your all done.