Resetting Ecu. What Will It Do To My Alarm?

[noakespg]

Hi everyone.

I bought myself a skyline last week and because i am uncertain as to

how its previous owner treated it I am giving it a working over. I will be doing a complete service and changing the timing belt and other little things so i was wondering about resetting the ECU so it tunes itself to suit BP ULTIMATE.

I have noticed that the car has pretty bad fuel economy at the moment even when i drive it easy and I was hoping that resetting the ECU would help with that also.

Even though there are many threads dedicated to this, none of them really touch on the effect it has on aftermarket car alarms and imobilizers.

My car has a Mannix SM700 car alarm which I dont have the books for. It has a battery backup, remote start 2 sirens remote central locking and imobilzer. Does anyone have any hints they can give me so I dont stuff the settings up?

[blind_elk]

The only thing that will happen is that the sirens might go onto battery backup, and scream their lungs out. You should have a key to turn the sirens off in this situation.

[Links]

Yeah most people turn the siren off - and this should let you unplug the battery..

[noakespg]

I dont have a key for it

Ill give the previous owner a call and find out if he still has it.

Thanks guys

[blind_elk]

Actually you don't need to disconnect the battery to reset the ECU. You simply short out 2 pins in the CONSULT port, located down by the fuse block, near your right knee.

[noakespg]

Cool.

Ill try that first! Thanks!