Need some advice MS3x Mopar COP start up

[jleilich]

Hi folks I'm pretty much a noob around here. I've had a few posts in the past but i'm finally to the point of start up on my 70 Cuda. Everything seems to be hooked up correctly. I'm cranking the engine but no fire.

Here is my comp log, it seems to be reading my cam and crank sensors ok and I have no sync errors. one thing i noticed here is they seem offset from each other. Should the cam be centered on the crank? Looking for advice on where to go from here.




Background on the car. This is spark only right now, i'm still using the carb. I started the instal project on a running driving car just about a month ago so fuel system is good. I'm using LS coils, Jeep cam sensor and a hall crank sensor (diy autotune) with a 36-1 wheel.

[jsmcortina]

That looks good. You can either use "Poll level" for the cam or "Rising" or "Falling"

Start out with the engine set to semi-sequential and wasted-COP. Get the engine to fire up and idle.

THEN enable full COP. If it fires then dies, you are 360 deg out of phase and can fix it in software.

James

[jleilich]

Ok thanks, good advice, Ill give it a go.

[jleilich]

Still nothing, doesnt seem to want to fire at all. Assuming everything is wired correctly, should I get some sort of spark? If I do the old pull a plug and check for spark trick will i get a light just like if I had a distributor on it?

[muythaibxr]

Still nothing, doesnt seem to want to fire at all. Assuming everything is wired correctly, should I get some sort of spark? If I do the old pull a plug and check for spark trick will i get a light just like if I had a distributor on it?

Try using test mode to see if the plugs are firing.

[jleilich]

thanks, yes I think test mode is my next step.

[jleilich]

Got her going, thanks for the advice guys. Cam sensor was 180 out. Flipped it around, re-checked everything, gave it a squirt of starting fluid (its cold out and no choke) and she fired right up.