Any suggestions...I'm stumped...

[apexi98]

Okay, so here's the run down...

2 weeks ago, my car just died in first gear doing about 5 miles an hour while making a turn. I had to push the teg about a 1/2 mile across a bridge. Anyways, at first I thought it was just the ignition, so i threw on a complete msd 6al, msd ss blaster coil, msd extreme cap, and i already had the msd super conductor plug wires and the ngk iridium IX plugs on the car. Now with that being said, the ignition was not the problem, it was the timing belt...

I replaced the timing belt, and got everything dead on. While I was in there, I went ahead and put on my unorthodox racing standard belt layout underdrive pulleys. When I got it all back together and fired the car up, it is running but the #4 cylinder is not getting a continuous spark...

To be more specific, the car runs perfect, and then out of no where at idle it gets a dead skip. Now when it does this, i might only do it for a couple of rotations and then smooth back out, or i can just give it a tap on the throttle and it smooths out and fires perfect. I have rulled out that it is not the spark plug or plug wire, because i tested it on the cap(i pulled the #4 cylinder wire out of the cap and watched the spark jump from the cap to the plug wire). Like i was saying, it is only doing it at idle, and it's not doing it all the time. When it does skip the spark on the cylinder, any addtional load by giving it throttle clears it up. At first I thought maybe it was the ignition box, but it is running the other 3 cylinders perfectly, and MSD states that the box will work perfectly on a 12V system. I also unhooked my amp wire from the battery thinking that maybe the box isn't getting enough power from the battery, but that's not it either. I'm kinda stumped. Oh, I also forgot to mention that I took the msd ignition control box back and got another one thinking that it might have been a faulty box, but nope that's not it either.

Any help or opinions would be greatly appreciated. Thanks for the help in advance!!!

[stoneman]

Just how predictable is this? I know you say it comes from "out of nowhere," but are you guaranteed that every time the car is running this will happen and it's just that it's not a consistent event (i.e. it only happens after running for 5 minutes)? Also, does the extra throttle 'always' clear it up?
Hope it goes well.

[92integ]

make sure ur plug wires are all on nice and good, make sure the gaps in the spark plugs are right and not to close/far.

and your timing might be off a tooth...if u have a timing light then you should check it.

[C25A1guy]

check spark plug gap.

[Acura2g]

Originally Posted by C25A1guy

check spark plug gap.

Check your groundings with a ohm meter while your at it.