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Old 01-03-2010, 11:45 PM   #1 (permalink)
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Default Loping idle
This is my first post and since i am a noob i thought it should go here. I have a d15z1 block with a d16y6 head on it. Any Ideas or suggestions would be great thanks.
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Old 01-04-2010, 01:24 AM   #2 (permalink)
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mite be TPS
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Old 01-04-2010, 01:48 AM   #3 (permalink)
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I thought of that the only thing is that the throttle body i put on when i did the swap had no tps problems. The guy who did the swap for me said that an adjustable cam gear and some timing adjustments will probably solve the problem. Im also wondering if it could be a faulty egr valve.
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Old 01-04-2010, 07:32 AM   #4 (permalink)
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Adjust your TPS according to the Honda Repair Manual, then set your idle to 650 rpm's by adjusting the TB idle adjustment screw.
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Old 01-04-2010, 10:40 AM   #5 (permalink)
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Minor vacuum leak that causes the IACV to go bonkers overcorrecting for the leak.

Doublecheck the valve timing, cam timing, and TPS first, though.
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Old 01-05-2010, 10:29 AM   #6 (permalink)
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Sounds like an IACV/ vac leak to me. When I changed to a Z6 manifold I used the wrong TB gasket and had a crazy idle, kinda like yours just way way worse. This was all caused by a vac leak. I changed back to the original gasket and fixed!
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Old 01-07-2010, 03:55 PM   #7 (permalink)
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The thing i cant figure out is why its so inconsistent. it never does it cold but after it has warmed up it will do it every now and then but it doesnt do it everytime i drive.
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Old 01-07-2010, 05:50 PM   #8 (permalink)
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I'm actually have the identical problem right now, I've looked for obvious stuff and can't find it. It def seems like a vacuum leak though.
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Old 01-07-2010, 08:37 PM   #9 (permalink)
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Originally Posted by glenniz View Post
Adjust your TPS according to the Honda Repair Manual, then set your idle to 650 rpm's by adjusting the TB idle adjustment screw.

They ask for help and when you give it to them, they just ignore you!
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Old 01-07-2010, 10:53 PM   #10 (permalink)
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so the fact that the car runs fine for about 20 minutes doesn't mean anything? it's still tps?
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