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hmm...shutting hood disrupts engine?

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Old Apr 27, 2007, 07:58 PM
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hmm...shutting hood disrupts engine?

hmm, on my recently purchsed used evo i noticed something. NOrmally i close hoods by pushin down on it after it clicks...but this particular time it was about..maybee 1 ft to 1.5 ft i let the hood go, and hte motor kinda sounded like it wanted to quit, or on the verge of, than it kicks in again like normal...
Old Apr 27, 2007, 08:00 PM
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Mine was hitting the clamp on the UICP and causing a stutter when closing the hood. I just moved the bolt part of the clamp to the side of the pipe and problem solved. Could be the same thing.
Old Apr 27, 2007, 08:03 PM
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I have a 2006 IX and it does that same damn thing. It does it every time I let the hood drop from a slight distance up. Just figured I wouldn't do that from now on, as I can't really see anything that the hood would be hitting. But now that you mention it I'll have to double check the hose clamp on the UICP.

Anyone else have an insight into why this happens?
Old Apr 27, 2007, 08:05 PM
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It's probably causing the MAFS to get weird readings causing it to stumble, it happens all the time.
Old Apr 27, 2007, 08:06 PM
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that's to be expected... don't slam your hood obviously
Old Apr 27, 2007, 08:47 PM
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alright , thx
Old Apr 27, 2007, 08:51 PM
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Its you knock sensor. The engine thinks it detects knock and tries to shut down the engine. Same thing happens when a really loud muscle car is next to you.
Old Apr 27, 2007, 09:22 PM
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hahahaha funny, same thing happens to me, like a ft ill let the hood close and the engine looses rpms and a second it comes back up again. i dont know why either, can someone shine light on this?
Old Apr 27, 2007, 09:43 PM
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Originally Posted by rcheung
Its you knock sensor. The engine thinks it detects knock and tries to shut down the engine. Same thing happens when a really loud muscle car is next to you.
Maf sensor, most likely. Knock sensor, not possible.
Old Apr 27, 2007, 09:46 PM
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Originally Posted by rcheung
Its you knock sensor. The engine thinks it detects knock and tries to shut down the engine. Same thing happens when a really loud muscle car is next to you.


my friend has jun 272's in his car, when i step right next time when he's idleing his car will start to stutter and sometimes stall or throw codes lol
Old Apr 27, 2007, 10:05 PM
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next time flick your airbox with your finger. fun fun fun...
Old Apr 27, 2007, 10:11 PM
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Originally Posted by Exciting News
next time flick your airbox with your finger. fun fun fun...
really lol
Old Apr 28, 2007, 12:03 AM
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Originally Posted by rcheung
Its you knock sensor. The engine thinks it detects knock and tries to shut down the engine. Same thing happens when a really loud muscle car is next to you.
haha dude, I thought I was the only one with that side affect
Old Apr 28, 2007, 12:11 AM
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its the maf, it very sensitive. my car stumbles and idles bad when a harley or my friends sti with straights is around...
Old Apr 28, 2007, 12:14 AM
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Same issue here. I have always wondered what caused that.


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