bmw e30 m42 engine swap,can't start up.

[saluts84]

Hi,i swapped an engines on my e30 from m40 to m42 out off e36,all the wiring loom is from e30,ecu is from e30,so there is a problem-the engine turns over,but there is no spark and the fuel is not coming to the engine.

[MrWhite]

Have a search in the technical forum. I had engine swap troubles with my M42, it turned out to be stuck injectors but it took a few steps to get there.

[TPS]

Crank Position Sensor?

[Brianmoooore]

IF you're certain there is no spark and no fuel pump activity when cranking, then the problem is either the CPS, as above, or whatever you've connected up wrongly.

[saluts84]

I checked crank position sensor 500 ohms I tried another one and was the same 500 ohms and same nothing.

[saluts84]

I checked all connections many times

[johnl320]

Cam and crank sensors plugged in the right way around?

[saluts84]

is it crank sensor plugs in the bottom and cam sensor on top

[johnl320]

As far as I can remember will check in the light tomorrow if you want? Brian probably already knows though.

[saluts84]

thank you, that would bi helpfuly

[saluts84]

yes, but I use e30 318is wiring loom, ECU 175, inlet manifold. basically everything is e30 except bare engine and crank /cam sensors.

[Brianmoooore]

Engine relays in the right sockets?
Check, with a 12 volt bulb NOT a meter, that you have power at the green wire of one of the coil pack plugs with the ignition on, and when the starter is engaged.

[saluts84]

I did and bulb did go on when ignition is on and when the starter was engaged.
Any more ideas?

[saluts84]

Problem sorted! I did ecu reset and engine get started straight away!
Thank you for your help!