Ignition breakup revisited
 

Since the summer I've had an ignition breakup problem. It only occurs under full throttle, at full boost (~8 psi). It will occur anywhere from 4000-7000 rpms. Basically the car will misfire for a moment, then feel fine, then misfire. When this happen it really slows the car down due to the lack of smooth revving while under boost. This only happens SOMETIMES. Sometimes it will pull nice and hard all the way to redline without a single problem. Here are a few things I know

1. It's not my bin
2. Not the distributor/ignitor. I swapped the entire distributor for a known good one and the problem still occurs sometimes.

All I can think of is maybe the plug wires. I was thinking that it couldn't be them because it only happens under full boost, but then I realized it could be happening because of high rpms, because I'm only in high rpms when under full boost.

Anybody else think that it could just be my wires? I don't wanna spend $50 to try it out and find the problem is still there.

Re: Ignition breakup revisited
 

whats the gap? have you tried new plugs?

Re: Ignition breakup revisited
 

hmmm just ohm out the plug wires, then youll know if those are good, the specs are right on the side of them of tolerable ohms, and i second the plug idea, temperature?, gap? seems funny that it peaces the ---- out at high rpms, sounds like a plug temperature issue, but hey could be the plug wires, get that ohm meter out :y

Re: Ignition breakup revisited
 

Using BKR7E plugs, worked flawlessly in my previous setup. Gapped at .030" initially, I also tried .028" and that did not fix the problem. I also replaced the plugs with new ones and it still happens.

I will try that. Could it also be possible that the resistance is within spec but somehow a crappy connection on one or more of them could cause this?

Re: Ignition breakup revisited
 

sure could, check "snugness" of each end. also check cap/rotor.

Re: Ignition breakup revisited
 

So basically, I just wanted confirmation that plug wires could be causing this. Sounds like I will give it a shot, unless anybody else has more ideas to offer?

Re: Ignition breakup revisited
 

jago i had a similar problem back in the day with my old d15b vtec

when i floored it it would lag for 2 seconds then be fine
if you hold it at full throttle long enough itll go back to normal and it will only do it once every startup

I never found the problem but I would check the tps.
Are you throwing any codes? I never knew if i had codes because the person that sold me the car had unhooked the cel.
Plug wires do no solve the problem...

Re: Ignition breakup revisited
 

I don't have any codes. This problem is different than yours, I floor it and it pulls just fine instantly, but when it build up to full boost and is in the higher rpm range this happens. Most likely not a TPS problem.

Re: Ignition breakup revisited
 

Im gonna guess plug wires,cap or rotor

Re: Ignition breakup revisited
 

Well, like I said, I swapped the entire distributor with a known good one from my previous setup. So cross your fingers with me and hope it's the plug wires ;)

Re: Ignition breakup revisited
 

just ohm those wires, and let us know whats goin on, is the coil putting out withing specs?, im thinking its the wires.... the rotor and points in the cap dont have arc burns/pitting do they? another thing that helps too is some electronic grease or white lithium grease, put a thin coat on the rotor and on the points in the cap, i had a spark issue once in my b series it would break up and chatter at like 5,000 rpms, and a little white lithum grease got that bitch roaring again :6

Re: Ignition breakup revisited
 

i had a bad set of wires doing this to me on my first setup.

id put in all new ignition components and dont ---- around...sounds like you've done all that cept the wires tho anyways.

Re: Ignition breakup revisited
 

If you do not have OEM Honduh wires, that could be the problem.

Got any pictures of your plugs?

Re: Ignition breakup revisited
 

Well the wires are blue so I doubt they're OEM. I'll get some pics of the plugs up this weekend.

Re: Ignition breakup revisited
 

I had the same problem as you when i upped my boost up to 10 psi...after reading what everyone had replied to your previous post i gapped the plugs down and the problem disappeared completely. Might also check and see if maybe you're arcing through the boots at the bottom of your plug wires. I had a set of knology hotwires that blasted through the insulator at the bottom near the spark plug, but it would only arc at higher rpm's.

Re: Ignition breakup revisited
 

I'm still hoping it's the wires... Thanks for the inupt

Anybody know if d16z6 wires are the same as d16y5? I'm assuming I get the wires that match my head (y5) and not the block (z6)

Re: Ignition breakup revisited
 

Do you know how to gap plugs?

no.. serious question, make sure they are slammed down and the ignition system is in perfect order. ;)

Re: Ignition breakup revisited
 

I had the same problem with my Civic when I put the last turbo kit on. I sold the car before I could figure out what it was.

I had the same plugs, gapped.028, crane cam ignition box, MSD blaster cap, fireball coil and stock wires. in the higher rpm's it would breakup like you describe.

Re: Ignition breakup revisited
 

Yea I just have one of those cheap gappers that look like a coin and cost a buck. Worked fine on my old setup gapped at .030"