E30 Zone

i got a older 325i pre face lift. was thinking to covert my ecu to face lift ecu. wat do i need to do. a face lift ecu any other model ok? 320 ecu? and face lift wire loom n any other thing? pls help.

Facelift 320 or 325 loom and facelift 325 ECU or facelift 320 ECU fitted with 325 'chip'.
Oil pressure switch has different connector, so you might want to swap that as well, and oil level sensor may be different.
Check out under the rubber boots of the plug and socket between the injector loom and the rest of the engine loom before you fit it.

You'll want a read of this - http://www.e30zone.net/e30zonewiki/inde ... tronic_1.3