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Old 08-20-2013, 09:05 PM   #141
scott7278
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Just did this easy mod today, although I did just get the car back from having a new clutch pack installed. There was indeed a gap, so it couldn't hurt...

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Old 08-20-2013, 09:22 PM   #142
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More a repair than a mod in my estimation. Hope it helps.

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Old 08-20-2013, 09:24 PM   #143
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Quote:
Originally Posted by slybarman View Post
More a repair than a mod in my estimation. Hope it helps.

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You are correct. Thank you!

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Old 08-20-2013, 09:35 PM   #144
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I think I may go back and caulk it, though, then put black duct tape back over it.

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Old 08-23-2013, 01:49 PM   #145
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Just looked at my 2012 and under that rubber grommet, low and behold, there were significant gaps between both intake tubes. They also seem to move about rather easily. So I too ya'lls advice and used some black duct tape to seal them up right. I can't be sure but I think it helped. I'm about to drive down to LA from SF so I'll let you know if I see a difference. Good call gents!
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Old 08-25-2013, 07:53 PM   #146
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I have checked the parts you guys mentioned. That is before the sensor so it should not have any impact. Can explain further how does it help ?
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Old 08-25-2013, 08:21 PM   #147
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Quote:
Originally Posted by Kamikaze2 View Post
I have checked the parts you guys mentioned. That is before the sensor so it should not have any impact. Can explain further how does it help ?
Take a look at the first post in this thread. Yes, it is before the sensor, but the theory at least is that at idle the car will ingest hot, engine compartment air via the gap in the intake tube.

The PCM will adjust the fuel mixture to this temperature. When acceleration is asked for, much cooler outside air will be present. The PCM can't adjust to the temperature change instantly, so a lean mixture results for a few seconds with consequent surging and driveability problems.

If you have a gap, try sealing it: it can't hurt and maybe you'll notice a difference.
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Old 08-25-2013, 09:08 PM   #148
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I still feel like taping the gap has worked for me. Makes taking off from a stop so much easier and less scary!
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Old 08-28-2013, 12:58 PM   #149
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I'm getting my car back for about a week while they order the clutch kit. I'll be sure to try this mod after the clutch is replaced - just in case.

EDIT: I'll check my gap beforehand, but I don't want the dealer to think anything fishy is going on with my tape on the car.
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Old 08-29-2013, 11:03 AM   #150
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Quote:
Originally Posted by dan50 View Post
Take a look at the first post in this thread. Yes, it is before the sensor, but the theory at least is that at idle the car will ingest hot, engine compartment air via the gap in the intake tube.

The PCM will adjust the fuel mixture to this temperature. When acceleration is asked for, much cooler outside air will be present. The PCM can't adjust to the temperature change instantly, so a lean mixture results for a few seconds with consequent surging and driveability problems.

If you have a gap, try sealing it: it can't hurt and maybe you'll notice a difference.
Also, there isn't any real seal between the parts, everyone will have some kind of gap. Mine looked small, but I could easily move the parts around to make a bigger or smaller gap. This might happen as the car is being bounced.

Thanks for this explanation, i had missed the part about how the PCM couldn't adjust fast enough. That makes possible improvements a lot more believable.

Also there was a post where someone measured the actual temps w/ a scan gauge and there was a difference.

edit: Also i just taped mine, it will be interesting to see if it makes any difference.

Last edited by gkirk; 08-29-2013 at 02:05 PM.
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