6 into 2 does go ('74 BMW 2002 content)

[mtmorto]

I took them off of my spark plugs because the wires wouldn't fit and it sparks fine.

[deutschman]

Good to know. Ill have to check for 12v at the coil.

[deutschman]

I am still having a hard time getting spark. The fact that I have a very limited understanding of how an ecu works and exactly what it does, mixed with the fact that the e30 engine harness is being mixed with a Painless wiring harness has me walking in circles right now.
I got a pin out chart of the ECU, so tomorrow I am going to start at the ECU and work my way forwards. First I just want to make sure the ECU is getting the correct ground and power. Ones I know that Ill work up to the wires that go from the ECU to the coil and see what kind of power they are putting out. Then coil resistance test, spark plug wire test, and points test. Man what a head ache.
I am asuming that the ECU dictates when the coil fires. Is this right? So if the ECU were bad the coil might not get power.
Does the coil get its power strait from the ECU? I think there is a yellow/black wire that goes from the starter solenoid to the coil. Man this shit rubs me the wrong way. So much to keep track of.
I know I have fuel at the rail. How does one check if the injectors are firing?

[TeckniX]

I may be wrong, but actually everything is self contained within the distributor. Check that you have 12 v there, then a test light to see it flash every time a coil is suppose to fire. From there you either have a flashing light or none, or maybe even not 12v at the distributor.
Could be just a bad coil if you get power but no spark.

Ps that's why the distributor is aligned in the cam, as the cam dictates when it should fire. In newer cars they have a cam angle sensor that the ecu reads and fire the spark. No such thing in older cars with the big distributors

[TeckniX]

Injector firing but no spark = wet spark plug. If you crank and pull them out you should smell the fuel

[deutschman]

Injector firing but no spark = wet spark plug. If you crank and pull them out you should smell the fuel

Thanks.

[deutschman]

I have everything but the injectors working. I am sooo close. Need a noid light. Ill be back soon.

[CubbyChowder]

hang in there buddy!

[TeckniX]

What was going on with the no spark? You can always spray a little bit of engine fluid and see if it fires properly.

[deutschman]

What was going on with the no spark? You can always spray a little bit of engine fluid and see if it fires properly.

I was missing a few connections at the c101 plug that gave switched power to the coil and ECU. I am going to try some starter fluid today along with doing some more tests on the injectors.

[deutschman]

I did some testing and came to a conclusion that made me feel so god damn stupid, but also made my day so great!
Started the morning with some starter fluid. It starts with starter fluid!!!

First I tested my injectors for resistance and they all came in at 14-15 OHMs. Good!

Then I made my self a geto noid light to check the injector harness for fire signals.

And it worked.

So then I was like "now why the hell wont my car start if everything is working electrically? Oh shit!!! My fuel lines are installed in revers." I had my return line and feed line mixed up the whole time! Dumb ass!
So now my car kind of starts. There is still something kind of funky going on but I get a rrrrrrrrrr gurgle and some smoke from it now which is a good step forwards. I am going to let the battery charge over night and then try again tomorrow.

[CubbyChowder]

good to hear, can't wait to see some video of it running properly

[TeckniX]

Glad to hear the fluid starter trick worked, usually a good sign that everything else works.
For someone with no background, you did well on the light and resistance testing.

[deutschman]

Well I am still having a hard time getting the engine to run. Still just wanting to fire one cylinder. Still trying to track down ze problem.
On another note, I welded up the exhasut.
MSDS headers => y pipe => flexible section => Cherry Bomb glass pack => to center section => to Magnaflow
I did it in three pieces, headers to glass pack, center section, and muffler section all connected by band clamps. I think I need to add one more hanger right at the muffler end of the center section.
It looks really low in the pictures but its actually not. It never gets lower then the diff in the back.

[deutschman]

My "rebuilt" fuel injectors are fubar. They worked fine before I had them rebuilt. I'll have to send them back and have them reworked.
In the mean time I'm picking an extra set up tomorrow.

This is what the injectors were doing

6 leaks and sprays
5 leaks no spray
4 leaks no spray
3 no spray no leak
2 no spray no leak
1 no spray no leak