Car wont start after timing belt.

[truekid]

If its not too much to ask can u explain me the second sentence. Trigger ring? where and what is that.

[e30Matt]

To the frame on the driver's side via the engine mount arm, if I recall correctly. Make sure the trigger ring is installed correctly and it isn't off; it's not keyed so you have to make sure the punch mark on the crank hub is visible through the smaller 7th hole in the bolt ring.

[truekid]

btw where is the M20 grounded?

[truekid]

Yea i just pulled it all out. Well here are the results. I think its off just a tad, is that really bad?

[jlevie]

+1

[e30Matt]

Pull the covers off and check the timing marks just to make sure they're on. Something sounds fishy there.

[truekid]

no poping at all. just wont crank right when the coil is plugged up. It tends to slow down cranking and It pics up again. Some times it cranks fine for like 10seconds. and then slows down and pics up again and cranks fine for 5 seconds. etc etc. Its random.

[e30Matt]

Sure the timing is on? Maybe it jumped a tooth. Any weird popping sounds from the engine when it turns over?

[truekid]

Update. Finally spark. I got it to spark. I dont know what it was, but it sparks. I check the plug too, and there is spark. But it still wont start

I jumped the fuel pump too, i heard it run. I do smell fuel on all the new plugs.

So here is what i noticed. Cranking is now not as smooth. I will crank, die down for a second and crank again. Battery?

If i take the ignition coil wire it out cranks like a champ again. What gives.

[truekid]

Hey guys ,Thanks for your post. I will be doing this first thing tom. I hope to post back with good news. I just wanna drive now. thanks.

[e30Matt]

Also make sure the main relay is alright. I know you've checked it, but try swapping it with a known good one and make sure. Those things do some crazy shit. Luke posted a way to bypass it with a couple of jumper wires.

[jlevie]

I'm not sure if the OBC will work unless the cluster is connected. C101 is the connector on the firewall next to the fuse box.

I think you need to get the wiring diagrams for the car (http://wedophones.com/BMWManualsLead.htm) and check trace from the ignition switch to the coil & DME

[truekid]

I tried connecting the OBC, but it wont power on. Tested the ignition switch, functions right, what is C101?

[jlevie]

No power to the coil suggests a problem with the ignition switch, C101, or maybe the code relay. Try connecting the OBC and cluster and see if you get coil power with the ignition on.

The fuel pumps only run when the DME sees timing data from a rotating engine. So if you have no coil power you probably don't have the Start signal to the DME and thus it isn't running. Which would mean the pumps wouldn't run.

[truekid]

If the car fired on starting fluid, you have spark, but no fuel. Check the CPS/swap it with a known good one, as the DME requires a signal that the engine is rotating to ground the fuel pump relay and give it power. Alternatively you can jumper the fuel pump relay slot to manually run it and try again.

Are you sure you installed the trigger wheel in the correct position on the crank hub? You should be able to see the punch mark on the hub through the smaller 7th hole in the ring of bolts on the trigger wheel. I've run into this problem after I fucked up and reinstalled one wrong one long tired night during a t-belt job.

Firing on starter fluid, but I dont have any power to the coil, maybe i tested it wrong. Plus I dont have any sparks out of the coil or plugs, no fuel smell either.

I tried to jump the fuel pump but nothing, i didnt hear it run, so i thought I had a bad fuel pump, hard wired them and they run!.

What is the trigger wheel. I followed the pelican article step by step. Thanks.
Tried to hear the fuel pump on, when I jumped