My turbo accord seems to be misfiring!
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My turbo accord seems to be misfiring! - 3/26/2006 8:52:23 PM
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mbo1985
Posts: 778
Joined: 12/11/2005
From: Florida
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My accord seems to be misfing at full throttle between 4500 and 5500. I know that one of the spark plug electrodes was chipped when I got it, but it didn't seem too bad so I used it. I'm thinking it might be that.
I still have my stock ignition setup. It just recently started doing this, so I'm not sure what's up.
I want to bring it down to the drag strip friday, so I hope I can get it straightend out!
< Message edited by mbo1985 -- 3/26/2006 8:53:11 PM >
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RE: My turbo accord seems to be misfiring! - 3/27/2006 2:33:45 AM
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lightshow
Posts: 1775
Joined: 1/6/2006
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well i would make sure your plugs are good first....also..REDUCE your gap on your plugs. i think they are supposed to be like 43 thousands, bring that down to like 33-35. then maybe you starting to see a little detonation, you might need to turn up your msd a little. OR you might be overexceeding the duty cycle on your injectors? what does your autometer say when it starts doing this?
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RE: My turbo accord seems to be misfiring! - 3/27/2006 2:36:17 AM
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lightshow
Posts: 1775
Joined: 1/6/2006
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if it going lean, then its your injectors.. if there is anything wrong with your plugs though it need to be replaced.
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RE: My turbo accord seems to be misfiring! - 3/27/2006 8:15:10 AM
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mbo1985
Posts: 778
Joined: 12/11/2005
From: Florida
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last time I checked, the autometer said rich. I'll have to double check when I drive to school this morning. I meant to pick up another plug yesterday, and I freakin' forgot so I'll have to get one today. I was going to reduce the gaps on them when I bought them since my ignition is stock but I decided to try it this way first.
Should be getting the DSM's soon also. Hopefully by thursday!
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RE: My turbo accord seems to be misfiring! - 3/27/2006 9:07:57 AM
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mbo1985
Posts: 778
Joined: 12/11/2005
From: Florida
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Alright, autometer isn't 100% rich. It looks like it bounces between 1-3 bars rich and stoich. Never gets lean though.
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RE: My turbo accord seems to be misfiring! - 3/27/2006 1:08:17 PM
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lightshow
Posts: 1775
Joined: 1/6/2006
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its probably that plug then...maybe even most likely.
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RE: My turbo accord seems to be misfiring! - 3/27/2006 1:09:13 PM
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lightshow
Posts: 1775
Joined: 1/6/2006
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definately reduce the gap on your plugs though...because the spark has a shorter distance to travel it will be harder to blow out.
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RE: My turbo accord seems to be misfiring! - 3/27/2006 9:30:43 PM
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mbo1985
Posts: 778
Joined: 12/11/2005
From: Florida
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yeah, it was that plug. Put a new NGK in there and it's running so smooth again.
I got my DSM's and fuel rail today. The injectors are used, and one of them has a chipped plastic tip. The metal seems ok, so I don't think the injector is messed up, but I'm wondering if the plastic part aids in sealing the injector to the manifold. Should I look for a replacement for that one, or just forget about it? And a quick question about wiring the clips up. The red/black wires (on my stock wire harness for the car) should be positive, right? Or is polarity not even an issue?
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RE: My turbo accord seems to be misfiring! - 3/27/2006 10:26:43 PM
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lightshow
Posts: 1775
Joined: 1/6/2006
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good im glad its runnin good again. your gonna tear it up at the strip. without looking at that injector i cant tell you for sure about it. and ill have to get back to you about the wires on the injectors. i just dont want to give you bad information. i do think polarity is an issue though. ill look at mine tonight
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RE: My turbo accord seems to be misfiring! - 3/27/2006 11:31:11 PM
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marbro
Posts: 1478
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awesome, something else i need to keep an eye out on when i know i screw things up ^_^ granted ill be running iridiums so i hope it wont ever be an issue...
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RE: My turbo accord seems to be misfiring! - 3/27/2006 11:41:54 PM
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mbo1985
Posts: 778
Joined: 12/11/2005
From: Florida
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They were iridiums actually. One of them was chipped when I got it, and I knew it would be a problem, but I didn't want to put the bosch back in there. Ran fine untill a week ago, I guess the gap just got too big.
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