325i into 320i electrical advice

[shep]

320i to 325i engine transplant electrical advice wanted . ihave a 88 e reg 325i knackered shell and plan to swap engine into a 89 f reg 320i i have just purchased i have good mechanical know how but electrical not too good is it just a ecu swap or more (also 325 has abs the 320 does not) please help cheers mick

[jmc330i]

It should just swap over.

Big round plug up by the fusebox is the where the engine loom plugs into the car. Unplug this on the 325i and remove the engine complete with engine loom, do the same on the 320i.

Fit the 2.5 engine (complete with loom) into the 320i shell and plug the plugs together, fit the 325i ECU and away you go.

Dont worry about the ABS, its got nothing to do with the engine loom so you wont touch it.

[shep]

thanks much appreciated cheers mick

[Brianmoooore]

Dont worry about the ABS, its got nothing to do with the engine loom so you wont touch it.

There is a connection actually, but it won't affect things putting an ABS engine into a non ABS shell.
On late cars there is a feed to the ABS on a red/yellow wire from pin 87 of the DME relay to pin 20 of theC101.

[jmc330i]

There is a connection actually, On late cars there is a feed to the ABS on a red/yellow wire from pin 87 of the DME relay to pin 20 of theC101.

Obviously I knew that

but it won't affect things putting an ABS engine into a non ABS shell.

And thats what I meant.

[Templ8e30]

The 325i and 320i engine looms are the same anyway.

Cheers,

Iain T

[jmc330i]

The 325i and 320i engine looms are the same anyway.

Didnt realise that, but it makes sense. Although leaving each loom on the engine will be easier than refitting a loom to an engine.

[Templ8e30]

Although leaving each loom on the engine will be easier than refitting a loom to an engine.

Not necessarily true mate, I find it easier to remove the loom from the engine than fannying about trying to get the ecu plug and the big rubber grommet back through the bulkhead and past the steering column

Cheers,

Iain T