KR sensor attenuation
Thread Starter
Teching In
Joined: Nov 2001
Posts: 33
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From: Kansas City
Re: KR sensor attenuation I have NineBall's design from the old TECH-LS1.com Forum. It's more of an L-pad attenuator. I was thinking maybe just a resistor to ground would do. If not, a varible resistor in series with high value cap to ground should work. I found the knock wires on my PCM I just need to check the signal level with a DMM or better yet O-scope from work.
Re: KR sensor attenuation Read about how knock sensors work on my website for the KO-Box. The link is in my signature.
Wiring a resistor in series with the K-sensor sometimes works, but can also set some SES codes if done improperly. The setup I designed uses no ground wire and the PCM still sees the exact same impedance coming from the K-sensors.
Tony
Wiring a resistor in series with the K-sensor sometimes works, but can also set some SES codes if done improperly. The setup I designed uses no ground wire and the PCM still sees the exact same impedance coming from the K-sensors.
Tony
Re: KR sensor attenuation Before I developed the KO-Box, I was suffering from 3-4 degrees KR, mostly in 3rd and 4th gear for some reason. On the Dynojet, this was causing about a 20 rwhp loss on my 450 rwhp setup. At the track I was losing about 3 tenths and 3 mph. Made me sick!
Tony
Tony
Thread Starter
Teching In
Joined: Nov 2001
Posts: 33
Likes: 0
From: Kansas City
Re: KR sensor attenuation Thanks Tony, I've been runing low mph at the track 101 to 103 with an A4 that has lid filter and free mods. I'll try a verify that's false KR then order your KO box.
<small>[ April 05, 2002, 10:07 PM: Message edited by: Crazy_2K_TA ]</small>
<small>[ April 05, 2002, 10:07 PM: Message edited by: Crazy_2K_TA ]</small>
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