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weird knock issues


BoostedAWD91
Senior Member
815/2000


Galant VR-4 org Post #: 928836 posted 09/07/10 06:48 PM     Remind Me!  Send Private Message   Edit Post      
Every once in a while while cruising my knock gauge spikes while on about 20% throttle. I'd let off and go again and everything would be fine for awhile. Just now it started doing it again every time I hit the throttle why cruising for about a min or two straight. I'm running v3 w/ evo 8 mad, I don't see any obvious problems taking a quick glance. Any ideas?



#815/2000- Lexus Pearl White


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BoostedAWD91
Senior Member
815/2000


Galant VR-4 org Post #: 929630 posted 09/09/10 06:47 PM     Remind Me!  Send Private Message   Edit Post      
Any thoughts



#815/2000- Lexus Pearl White


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Hult250R
Unregistered


Galant VR-4 org Post #: 929797 posted 09/10/10 07:57 AM     Remind Me!  Send Private Message   Edit Post      
It sounds like phantom knock. Knock sensor is picking up a noise from somewhere else in the engine. Could be lifter tick, a power steering pump rattling, pretty much anything that's making a sound in the knock sensors sound frequency window.
I had the same problem with my 1G. I ended up having keydiver burn a chip with a phantom knock code in it to ignore any knock under 80% or so throttle position. I've since had another motor built and don't have that problem with this motor

I've got DSMLink now, its got a setting in it for phantom knock as well. I just can't remember exactly where the setting is. You may want to look into the DSMLink wiki and see if that may help.

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BoostedAWD91
Senior Member
815/2000


Galant VR-4 org Post #: 929922 posted 09/10/10 06:49 PM     Remind Me!  Send Private Message   Edit Post   
Yea I never thought about that. Ill have to check around v3 when I get back



#815/2000- Lexus Pearl White


Posts: 2937 | From: Danville,Pa | Member Since: 03/01/07 | IP: (75.206.103.3) | Report this post to a Moderator


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