Eta-to-M50: Build thread

[AndrewBird]

The ICV plug, and the CPS plug were mixed up. We also discovered that the cam position sensor and the crank position sensor have the same color wires going to them. So you can't tell them apart. I'm wondering if it even matters. Are they somehow wired in parallel to each other?

Edit: Looking at the ETM, they go to different pins on the DME, so it does matter. Can't imagine why they would make them the same color wires.

[LJ851]

Both. It runs, and it runs really well. Sounds great, idles just fine. There is a first-start video, I'll upload it shortly.

Not soon enough, get to work.

[shiboujin]

so what was the solution?

[Jand3rson]

Does that face mean you've gone insane or that you got the motor to fire up?

Both. It runs, and it runs really well. Sounds great, idles just fine. There is a first-start video, I'll upload it shortly.

[trackjunkie21]

Does that face mean you've gone insane or that you got the motor to fire up?

This

[sandlock]

Does that face mean you've gone insane or that you got the motor to fire up?

[AbsorbantNut]

83 pages......long thread bro

[Jand3rson]

[shiboujin]

I've personally yanked NV M50s out of both E34s and E36s.

[ck_taft325is]

Well Greg gave him a fantastic deal on it.

[bubbajan21]

According to wikipedia, 1991 - 1992 E34's got non-vanos M50's. But hey, who trusts wiki!:)

[shiboujin]

Both E34s and E36s got non vanos and vanos motors. The year range for E36s is very short.

Non vanos motors have their merits. Janderson picked it (iirc) more out of cost and availability than anything. Besides, a vanos upgrade is REALLY easy.

[ck_taft325is]

Honest question... but did the e34 even get the non-vanos M50? I was under the impression that car only got the M50TU engines. E36's in 1992 got the M50NV motors?

That was my thought and the reason for my post. I was under the impression E34's only came with M50 Vanos. But, I might be wrong.

Josh, I'm sure you guys already have but have you triple checked your fuse block?

[UNHCLL]

Sigh... as much as I'm sure you'd like that to be true, I doubt it. The harness was in good shape, still attached to the engine, injector wiring and fuel rail in the stock fashion, the plastic cover on the injector wiring rail didn't even look like it had ever been removed.

The harness is hard-wired in, no adapter. Andrew wired my car's harness directly into the X20 connector. Pinouts for an '86 325es and the E34 525i were used.

It sounds to me like what Wh33lhop and Yoshi are saying, that the ECU isn't getting power and trying to start the car. If the fuel pump replay works when I jump it, but not with 2 other known good relays in place, the relay is not getting a signal from the ECU to fire the injectors and start the car.

Andrew is on his way over right now, and we are going to get to the bottom of this.

Honest question... but did the e34 even get the non-vanos M50? I was under the impression that car only got the M50TU engines. E36's in 1992 got the M50NV motors?

[shiboujin]

Actually, with that ground wire hooked up to the pos terminal, that's VERY possible. DO IT!