What is causing my car to break up?!
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What is causing my car to break up?!
I made another post a few weeks ago describing the issue, but here it is again:
I installed a catchcan set-up on my car a few weeks ago, 2 bungs on the front of the valve cover, with a drain back to the back of the block. I also removed a vacuum box, and redid the vacuum lines, since then my car will break up when the RPMs start to climb. The car starts and idles perfectly. Partial throttle boost is perfect, as soon as it goes WOT, and the RPMs climb, it starts to break up. I have since installed the vacuum box back, changed the plugs, looked at everything I know to look at, and it still breaks up.
I am starting to think maybe the catchcan has something to do with it, since it is the only that that I haven't changed back. Car was 100% perfect before this. ANY IDEAS?
I installed a catchcan set-up on my car a few weeks ago, 2 bungs on the front of the valve cover, with a drain back to the back of the block. I also removed a vacuum box, and redid the vacuum lines, since then my car will break up when the RPMs start to climb. The car starts and idles perfectly. Partial throttle boost is perfect, as soon as it goes WOT, and the RPMs climb, it starts to break up. I have since installed the vacuum box back, changed the plugs, looked at everything I know to look at, and it still breaks up.
I am starting to think maybe the catchcan has something to do with it, since it is the only that that I haven't changed back. Car was 100% perfect before this. ANY IDEAS?
#2
Mr. Badwrench
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Re: What is causing my car to break up?!
whats your afr's look like while it is doing this? what do the spark plugs look like also?
and what are the gap? how sound is your ignition system?
and what are the gap? how sound is your ignition system?
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Re: What is causing my car to break up?!
#4
Re: What is causing my car to break up?!
a friend of mine had the same problem and we were going crazy trying to track down the problem by retuning, spark plugs, wires, and what not but like 2 days ago he found out it was the dizzy cap. see if anybody has a spare lying around just to rule that out.
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Re: What is causing my car to break up?!
I'm gonna try to get my hands on a spare dizzy to rule the ignition out. Thanks for the reply.
#6
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Re: What is causing my car to break up?!
how much boost are you running? my car over 20-22psi with stock ignition i had to bring the plug gap from .028 down to .018 now i can run 31psi ok with no breakups
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Re: What is causing my car to break up?!
Just running off of WG spring, which is 10 psi. Misfire is constant now, worse than ever. Im gonna check compression today.
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Re: What is causing my car to break up?!
GM 3 bar, boost cut is 14, but the car starts acting up after it makes a few pounds. Doesn't even have the chance for VTEC to engage.
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