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I really need your help

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Old 03-29-2008, 08:52 PM
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Alright I just installed headers, off road y and had a full tune. Right after I had it done I noticed that when I sit at idle and the car warms up it "missfires". It will happen over and over and I'm scared to go anywhere thinking that it will just die on me. I was told it could be injectors or something else.. it isn't throwing any codes at all. I can hear it popping out of the exhaust cutout..
BTW the spark plugs are all brand new so they aren't cracked.
I'm going to try and get a video of the sound tomorrow so I can better explain it maybe someone will know what it is.
Any suggestions or expirences with this?
Old 03-29-2008, 09:28 PM
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Plug wires broken or not fully seated?
Old 03-29-2008, 09:32 PM
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I know you said that the plugs are brand new, but did you actually look closely at each one when you put them in. On time on my van I pug in plugs and it ran like ****. Took them back out and then found one of the brand new ones was cracked!!!
Old 03-29-2008, 09:48 PM
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The plug wires are old.. it may be them I could try doing that tomorrow.
The plugs themselves were fine.
Old 03-29-2008, 10:04 PM
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Maybe a plug wire too close to the header and arcing across. It's dark out now. Pop the hood and start it up. Look for fireworks.
Old 03-29-2008, 10:11 PM
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a video will help alot. make sure to get under hood by plug wires, injectors etc. also get a good quality sound clip from the exhaust.
Old 03-29-2008, 10:16 PM
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k I will take one tomorrow and upload it for everyone
Old 03-29-2008, 10:16 PM
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02 sensors.

Headers often foul them out, and sometimes it takes a while for a code to pop up.

Here's your clue - it runs fine cold, but when it's warm (and starts taking feedback from o2's) it runs bad...
Old 03-29-2008, 10:21 PM
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Originally Posted by keliente
02 sensors.

Headers often foul them out, and sometimes it takes a while for a code to pop up.

Here's your clue - it runs fine cold, but when it's warm (and starts taking feedback from o2's) it runs bad...
OP said when its warming up it missfires.
Old 03-29-2008, 10:29 PM
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Originally Posted by LS1>girlfriend
OP said when its warming up it missfires.
I guess it's a matter of semantics then - "when it warms up" to me = when the car is warm it has a problem.
Old 03-29-2008, 11:34 PM
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hmm.. I don't know how to be sure what it is, I don't have a lot of money to throw around replacing stuff.
Old 03-30-2008, 11:03 PM
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Okay here is the link to the video you can hear it making the continuous popping sound... btw turn the volume up loud to hear it
http://www.youtube.com/watch?v=n6lzuSNE51k
Old 03-30-2008, 11:57 PM
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ummm i didnt hear anything out of the ordinary....unless your talking about the sound at 4 seconds that sound like a drumstick being dropped a few inches above conrete.
Old 03-31-2008, 12:57 AM
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When i installed my headers my car was missing and smoken just a little on idle was my o2 sensor good luck with it tough bro...
Old 03-31-2008, 05:58 AM
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I might have to take another one, it didn't seem to pick up that well. There was a plastic ding noise because I accidently hit my camera. I can hear the sound better near the end where it sounds like a train, it's actually popping.




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