What are these plugs?

[Snoopy]

first one looks like a o2 sensor plug, and on the cable it has a circular fixing that looks like it would fasten it to something. it has one thick green wire on the male pin and then on the two other pins the wires are green/blue and brown, it runs up to the harness along with the bellhousing sensors... Im thinking this might have something to do with why I have no spark



second is this long plug with a large pin, blue wire. it has another plug with a black wire stemming off that looks like the mate to the blue wire plug, is this an air temp sensor?

[kronus]

Can't see shit, captain. You need to rehost those images.

[mooseheadm5]

Need pics.
Need to know what version of Motronic. Preferrably, what year the harness is.

[Snoopy]

I think the first plug might be OBC. Im using the harness that came with the engine, e23 L7, I think '87

[mooseheadm5]

OBC? doesn't look like it. The second plug may be the AC clutch. Do you have power to the injectors? What about the coil? Do you have power to the green wire on the OBC? Power to the main and fuel pump relays? Without it, the car will not start. If you don't have an OBC on your car, you need to find that wire.

[Liam]

1st one is to the brake pad sensor.

2nd pick is just a body faster for the harness.

Last one is to the AC clutch (I think).

[mooseheadm5]

It wouldn't be a pad sensor wire for two reasons. One, pad sensor sires have 2 pins. 2, pad sensor wires don't go through the engine harness. I think it may actually be the O2 sensor wire, but not certain. I'll check the wire colors for an E28, should be the same. In any case, I don't think it is why you don't have spark.

[Snoopy]

Im using a 059 ecu that supposedly has a dinan chip. its from an '85 735i, I cant find another ecu to test if thats the problem

[Snoopy]

I pulled out the ecu tonight to find that it was burning hot to the touch. why would this be, short? too much voltage?