TJ's Motors built/in (working on KR issues now, update 9-12) - Page 15 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 08-19-2007, 07:46 PM   #141
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http://s116.photobucket.com/albums/o...t=100_3445.flv

They go in order. The left group of three is the back plugs. Left would be left in car, right would be right (closest to TB),
Right group is the fronts, same order
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Old 08-19-2007, 08:54 PM   #142
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Quote:
Originally Posted by TJ'sblackbonne
Also, i have another question. Andrew made that homemade HV3 for me (cut down runners and used his scientific calculations and what not). Could those plugs closest to the TB be lean because of the way the air is entering the runners now? Just an idea (being i am the first to try this).
Absolutely. In fact, this very problem with the design was discussed when the idea was first proposed. I would suggest returning the insert to it'* OEM condition until you get the problems sorted out. Then try it again later when the car is running correctly.

Install 6 new plugs at that time.

(in the meantime, learn how to use macro mode on your camera, or borrow one that can)
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Old 08-19-2007, 10:26 PM   #143
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I did plugs tonight and the car runs much better. If i roll into the throttle no KR, if i floor it i still see KR. So tomorrow i am going to switch back to the OEM runners and see if that helps.

Its a cheap camera and almost never has any problems but it could not pick up those plugs for anything lol
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Old 08-19-2007, 10:45 PM   #144
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If it has a macro mode, use that. Its usually a flower symbol.
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Old 08-19-2007, 10:47 PM   #145
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I think that the L36 #6 cylinder runs lean even with the stock UIM insert. I believe this because:
1) of some conversation I had with 95naSTA some time ago about how air enters the UIM
2) all four sets of broken plastic LIM gaskets I've replaced looked worst at the #6 cylinder
3) every #6 spark plug I've looked at on these engines (with a stock PCM tune) is slightly whiter than the others

TJ, you got PM
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Old 08-19-2007, 10:57 PM   #146
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Quote:
Originally Posted by popatim
If it has a macro mode, use that. Its usually a flower symbol.
definently what i was using.
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Old 08-19-2007, 10:58 PM   #147
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I dunno what is causing the KR but i am going to contiue to pluck away at things and try to pin point it and i will keep updating it. Tomorrow (hopefully) is HV3, and injectors.


Anyone have any other ideas that i can check?
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Old 08-19-2007, 11:14 PM   #148
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Have you watched your MAF voltage when your getting KR?
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Old 08-19-2007, 11:26 PM   #149
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voltage ummm no i dont think so but i can. I am pretty sure my scan tool scans that.
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Old 08-19-2007, 11:52 PM   #150
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Quote:
Originally Posted by agrazela
I think that the L36 #6 cylinder runs lean even with the stock UIM insert. I believe this because:
1) of some conversation I had with 95naSTA some time ago about how air enters the UIM
2) all four sets of broken plastic LIM gaskets I've replaced looked worst at the #6 cylinder
3) every #6 spark plug I've looked at on these engines (with a stock PCM tune) is slightly whiter than the others

TJ, you got PM
Your points have very little to do with his massive case of KR. The source needs to be found. This particular case is not a simple matter of a slight variance in UIM runner flow.
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