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Discussion Starter #1
I already did the knock sensor mod, soldering the resistor at the location that it is suppose to be. It has worked great, off and on, for the past month or so. However I believe that I am still having intermittent problems.

I think my problem is that the wire i soldered the resistor onto is in really bad condition. It is like that as far as i can trace it to the back of the engine. The wire is very brittle and all corroded with the weatherproofing missing.

My question here, is could i put the resistor off the wire coming right out of the ECU? Or is that not possible for some reason.
 

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You can do it right at the ECU with no problems.
 

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Discussion Starter #3
do you know what pins?
 

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You aren't tracing the wire that actually goes to the engine are you?
 

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Discussion Starter #5
no, its soldered on the ECU side.
the wire's just in really bad shape.
 

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Heh, I meant to post this when I got back from work, but you beat me to it.
[attachment 14844 ecupinout.jpg]
 

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;)

so in other words... welding the resistor between 23 and 20 should do the trick
 

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Welding would be a bit of overkill here (LOL) -- soldering is more in line with what's needed!!!!

 

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The uninsulated wire that is on the main harness knock sensor pigtail is the sheilded portion of the circuit.
 

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Discussion Starter #11
wow guys. Amazing thankyou.
 

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Discussion Starter #12
Hey JT, i remember a while ago i made a post asking if a 1 megaohm, .5 wat resistor was good for the application.

I remember you saying its fine, but there was a better one. Do you remember whice one it was?

I want this to be the last time i have to do this.
 

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I got the 1 megaohm, .5 watt and no problems so far...

and.... yeah... welding would be an overkill =P LOL!

its just that my spanish gets in the way of my english at times =P we call both procedures "soldar" =P
 

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Wattage is not critical. 1 Meg will work but I've used 750K as well. I think most anything between 500k and 1 Meg is fine.
 

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Discussion Starter #16
Now should i splice the resistor in or can i just cut the wires and have them go directly to the resistor?

Does that ground belong to anything else?
 

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any ground would be good as long as its solid
 

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Don't cut that ground wire. You can cut the sensor wire but leave the ground wire attached.
 

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Discussion Starter #19
i can splice the sensor into it though right?
 

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yes you can splice into it with no issues
 
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