E30 Zone

I don't really want to admit to this in public but I broke the ECU on my friends 320i last night by shorting out the wrong pins to reset the service lights....

Fortunately I had a spare ECU kicking about but it was from a 325i.

The car runs, but is any one aware of any problems that could be caused running the car like this untill I can source another ECU?

By the way, I tried to swap the 320 chip into the good ECU but the chip appears to be knackered too!

Many thanks, and yes I know I'm stupid.

I ran my 2.0 touring with a 2.5 ECU for a few months, probably overfuelled a bit, but it ran better than before!

Thanks dave,

I was pretty certain it would be alright, always worth getting a second opinion though.

I'm now thinking about dropping a 320 'Zone Chip' into the 325 ECU.....

Does anyone know anything about the differences between the ECU's and whether this would be just as good as using a proper 320i ECU....?

The ECU that was in the 320 originally was a '381' whereas the 325 one i swapped it with is a '380'.

my ecu is a 381 but they sent me a 173 chip, seems to be ok for me.

elliot

all the post facelift ECUs are the same apart from the chip on the PCB dudes.

318iS is the exception to the rule though OK !!

you can use M20/M40 ECUs from an e34 if anyone ever get stuck.

Brilliant, cheers Ant...