The comprehensive DOHC engine swap thread.

[Mstngcobr761]

I got an S50 from an Automatic 95 M3...will the harness work with a manual trans or will I have to source a manual one

[E34Dean]

i had a silver label ecu and the build date on the car was 10/94, there's a chance you may have EWS...

I hav a 1/94 build date e34 and it has a silver label.

[E34Dean]

My point was that it doesn't matter weather I use a silver label or a red label. My car starts and runs and drives.

I didn't do any wiring for the EWS, so that is why it puzzles me about the silver labels and EWS.

Yeah It can run and drive until you chip it with a chip not designed for a silver label with EWS , in his case he has a turner chip. if its a silver label and hes running a red label turner chip it obviously will not work because the chips must be aligned to the ECU for units with EWS if i remember correctly...

[bwh13]

Speed Sensor Delete; Why?

Why would the chip for the DME need to have the speed sensor function deleted?

[redmist]

Alt radiator location, OEM SS exhaust mod, shaved doors, coolant bleed, oil cooler

http://s15.photobucket.com/albums/a358/redmistmotorsports/e30%20redeux%20m52/

Alternative radiator placement, SS shroud, engine coolant bleed valve, oil cooler, shaved doors, side molding delete

[BimmerTim]

i had a silver label ecu and the build date on the car was 10/94, there's a chance you may have EWS...

My point was that it doesn't matter weather I use a silver label or a red label. My car starts and runs and drives.

I didn't do any wiring for the EWS, so that is why it puzzles me about the silver labels and EWS.

[dude8383]

I can start my car with a silver label and a red label. Is the 95 m3 silver label an exception to the EWS rule?

i had a silver label ecu and the build date on the car was 10/94, there's a chance you may have EWS...

[BimmerTim]

I can start my car with a silver label and a red label. Is the 95 m3 silver label an exception to the EWS rule?

[dude8383]

The fuel pump on my m50tu swap isn't turning on??!! The blue relay is getting power, I'm using a treehouse racing adaptor. The engine is getting spark. I don't get it.

I checked and there is no power going to the fuel pump, and no power going through the fuel pump fuse in the fuse box. Anybody got any ideas??

Also, I did s50 cams and a turner chip, but i don't think the chip would effect anything...

silver or red label ECU? its possible you may have EWS...i had the same issue with mine, getting spark but no fuel :)

[91Saleen#15]

The fuel pump on my m50tu swap isn't turning on??!! The blue relay is getting power, I'm using a treehouse racing adaptor. The engine is getting spark. I don't get it.

I checked and there is no power going to the fuel pump, and no power going through the fuel pump fuse in the fuse box. Anybody got any ideas??

Also, I did s50 cams and a turner chip, but i don't think the chip would effect anything...

pull the fuel relay and jumper it. See if power is coming to the relay. When you look at the socket, the jumper pins are at 6 and 9 o'clock if the slot for the odd ball pin is considered 12 o'clock.

[e30 blue]

Good advice to Jon at Treehouse, I have called a few times now and he has been very helpful. Would like to know what you find out, b/c I have the treehouse adpt as well and Your ahead of me on the swap.

[bimerok]

You spent about $400 on wiring adapter. Have you tried contacting the vendor?

[siexyy55]

Whats going on

The fuel pump on my m50tu swap isn't turning on??!! The blue relay is getting power, I'm using a treehouse racing adaptor. The engine is getting spark. I don't get it.

I checked and there is no power going to the fuel pump, and no power going through the fuel pump fuse in the fuse box. Anybody got any ideas??

Also, I did s50 cams and a turner chip, but i don't think the chip would effect anything...

[omar85]

so the numbers are on the wires?

[7pilot]

hey i don't want to make a new thread for this and i am assuming other will run into the problem. I put an 94 m50 intake mani and wiring harness on an S52. The problem is i don't know which female connector goes to the vanos and which goes to the coolant temp sensor. the only difference is the blue rubber piece on the female ends.

here are the 2 female plugs on the harness. one is for the temp sensor which i am not using the and other is for the vanos unit. both have the same color wires when u pull the rubber back. how do i know which to plug into the vanos male end.

Peel the boots off and compare wiring codes with the ETM.
I would guess that the plug with the blue pad goes to the CTS but those pads can fall out and be switched.

m