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Old 10-16-2009, 02:52 PM   #1
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Exclamation Need help with this preblem. have tried almost everything

Hey guys well Chris came down and we put Tom DIY kit on his foci and everything else for it to run 15psi safely. ok well after we get everything done it runs awesome. we beat on it a littler and the next day he goes home (tallahassee) ok he fills up at race track and then is on his way back home. he pulls over to a rest area and as he is leaving he does a 3rd gear pull and he notices the j&s light up. he gets home and sees the maf lost a bolt. he replaces the maf tube and then him and tom go over the tune and check it over. But the car misses up after 5700 now. so its at my house for the past week now. i have replaced the intake mani couplers with vibrant ones. i have checked all vac line, all intercooler piping, replaced the plugs gapped to .30 and went as low as .20 and still misses, plug wires, and the coil pack from my car. cleaned maf and ik ive done more once you guys bring it up but. the car pulls strong on up to 5700 and then it misses. car drives perfect below 5700. also there are no light on the j&s even when it hits 5700. so im stumped. Also chris did two compression checks and everything is good

Does anyone else have any suggestions


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Old 10-16-2009, 03:08 PM   #2
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Where did the bolt go? Is the MAF damaged in any way?
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Old 10-16-2009, 03:13 PM   #3
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I suspect in the datalogs they have been able to look at injector pulse, fuel pressure, advance/retard timing, amongst other things....let me think about it on my way home.
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Old 10-16-2009, 03:32 PM   #4
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No damage to the maf

And the wierd thing is everything in the datalog looks great ( Tom checked it over )
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Old 10-16-2009, 03:38 PM   #5
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O and let me add Tom is doing all the tunning
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Old 10-16-2009, 03:40 PM   #6
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i would defin. check the piping to see if the bolt might have gotten inside it somehow, or is something is in the piping maybe
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Old 10-16-2009, 03:52 PM   #7
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Checked all of it nothing in there
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Old 10-16-2009, 04:00 PM   #8
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No way for the bolt to go inside the piping , shoot me a log and let me look again now that you have done all this

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Old 10-16-2009, 04:02 PM   #9
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ok its raining now but i will when it stops
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Old 10-16-2009, 04:03 PM   #10
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Not to mention, sucking a bolt into the intake wouldn't make the car miss...it would freakin destroy something, lol.

Yeah man, that's weird. Just wondering how the logs are fine if it misses at 5700? You're going to see the A/F ratio, boost, timing, etc change considerably, no?
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