94mightymax

i having weird problems with my car lately. 1994 civic lx 4 dr with d16y8 swap.

the issue is when the car is running it will randomly start missing on cylinder #1 then it will run fine again. sometimes it will happen as soon as i start the car and sometimes i will drive it 50 miles and not have the problem.

i have replaced many things and still can't find the problem.

replaced:

fuel pump, plugs, distributor, wires, engine wiring harness, ecu.

can anyone help this is my only car!

96spydergst

Any water down around the spark plug whole? Did you buy decent spark plug wires? Take a look at them and see if they are thin where the spark plug goes in, they ark sometimes. I had some cheapies and they did that. Also how do you know that it is missing spark on the #1 cylinder? And I would try another dizzy. And some of that motor bay cleaner is like brake cleaner and it will dry-rot shit out fast. Unplug the dizzy and make sure every thing is dry and clean (in the plugs). Hope that helps.

sprjit22

Check to make sure injector plug has the metal clip on it and it has good contact

94mightymax

no water in the plug, it has ngk v-powers in it, when it starts missing i can unplug the wire to cylinder #1 and and dosn't affect how the car runs, all ijectors have the clips in them

96spydergst

Are you sure your harness has not been messed with? I would just take a look at the wire's for the injectors make sure if they were cut and spliced that it was done right. The harness can look new but be used.

Bottom line if that cylinder is missing out. Its gotta be plugs,dizzy,wireing, clogged injector, spark plug wire's.(I would say try a diff TPS or MAP cuz mine runs all fucked up when I had a bad TPS i donno if that has anything todo with it) Other than that have you checked the compression on cylinder 1 compared to the others? And its not running in LIMP mode is it?
But I would try another dizzy, I have heard of bad refurbished dizzys. Thats all I got tho... after all that I would just call Neal and have him come out and be done with it.813 842 5517

GL!!

96spydergst

wait a sec is it a 5speed or auto?