Did I kill my Knock Sensor Circuit?
This is regarding the SMEC in my lancer. I was lazy and grabbed a bK/green tracer wire and spliced in the 0-1v NB output from my WBO2 controller to feed the computer the signal. Only problem was that there are two black with green tracer wires in that area. I grabbed the one for the knock sensor instead of the O2 sensor signal. Will feeding a DC 0-1V signal to the knock sensor signal wire destroy that portion of the board? I'm getting very little knock voltage out of the computer now. It is .02V unless I really let a 1/2" drive extension rattle the intake. There were a couple times I did get some knock voltage when in boost, but it really didn't pull timing.
I did check the continuity from the knock sensor to pin #2 on the SMEC and it is great.
On the up side, the car is making more power at the same boost. The clutch is now slipping after my upgrades including a ported head and exhaust manifold, TII intake, and S60 IC. Ups and downs here I guess...
Re: Did I kill my Knock Sensor Circuit?
Re: Did I kill my Knock Sensor Circuit?
Quote:
Originally Posted by
tryingbe
Doubt it.
I would be thrilled if that were the case. I'm just worried that a circuit which is designed to take what I imagine would be AC millivolts might not like 1V DC. If it is working right, I'm getting no knock at all, not even any noise so I guess my knock sensor could be faulty too. Good times.
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Re: Did I kill my Knock Sensor Circuit?
Nah will not hurt it at all
Re: Did I kill my Knock Sensor Circuit?
Quote:
Originally Posted by
chromguy
Nah will not hurt it at all
Thank the Lord. With the WBO2, and MPSciLink hooked up to this tablet, it's time for some tuning. I'm quite lean right now, so I'll need to check out the physical fuel system before I get too carried away with the cal side. The ported head bits and S60 IC certainly seem to be doing the job though.
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ETA: Where did you come up with all of these schematics?
Re: Did I kill my Knock Sensor Circuit?
Quote:
Originally Posted by
cordes
ETA: Where did you come up with all of these schematics?
They are from my hard drive.....LOL
Please read this!
http://www.turbo-2.com/pdf/adv-turbo-theory.pdf
Re: Did I kill my Knock Sensor Circuit?
Re: Did I kill my Knock Sensor Circuit?
When I went ported head, big plenum 2 piece, and tube header I had to add 50% more fuel at idle rpm. And about 25-30 everywhere else.
Re: Did I kill my Knock Sensor Circuit?
Quote:
Originally Posted by
GLHNSLHT2
When I went ported head, big plenum 2 piece, and tube header I had to add 50% more fuel at idle rpm. And about 25-30 everywhere else.
I can tell this thing is going to need a lot more fuel. I think the cal has enough leeway to get it right at idle, but I bet I'm using all the adaptives can give. The clutch now slips at 3-4PSI, so I need to do that before any real tuning can begin.
