Knock Light Configuration
Knock Light Configuration
I came across a cool little configuration over on the AEM forums for setting up a knock indicator light.
http://forum.aempower.com/bbs/viewtopic.php?t=13557
I changed the configuration slightly to use the IC spray indicator light instead of the Check Engine Light which is configured as a shift light. If you decide to do this you'll need to modify the base map configuration for Fuel10 so that it is always active versus the base setup for the IC spray function.
Set up:
Options>list selection>Fuel10 Switch>Switch #7 ON
Setup>advanced setup>analog input switch>options switch #7
Min rpm: 0
Min tps: 0
On above: 0.02 Volts (Adjust this number upwards to show only more severe knock)
On below: 0 Volts
Analog In: Knock 1
As indicated in the original post, in order for this to work you'll need to have your knock sensor fully calibrated. You can test the configuration by lowering the threshold voltage to zero at a specific RPM range. Then drive the car through this RPM range under some throttle load. The light should come on as you hit the low threshold area you just created and then turn off as you move past it. Don't forget to restore your knock calibration once your done testing.
While this light isn't the brightest nor does it have the rapid response time, it should come in handy to glance down at during a WOT burst to spot check for knock or confirm if what the seat of your pants is telling you is really the result of the knock control kicking in. I've set this up and it works. I'm going to try this out for awhile. If it works well I'll wire up a bright jumbo red LED and install it so it's sticking up out of the top of the dash over the instrument cluster.
http://forum.aempower.com/bbs/viewtopic.php?t=13557
I changed the configuration slightly to use the IC spray indicator light instead of the Check Engine Light which is configured as a shift light. If you decide to do this you'll need to modify the base map configuration for Fuel10 so that it is always active versus the base setup for the IC spray function.
Set up:
Options>list selection>Fuel10 Switch>Switch #7 ON
Setup>advanced setup>analog input switch>options switch #7
Min rpm: 0
Min tps: 0
On above: 0.02 Volts (Adjust this number upwards to show only more severe knock)
On below: 0 Volts
Analog In: Knock 1
As indicated in the original post, in order for this to work you'll need to have your knock sensor fully calibrated. You can test the configuration by lowering the threshold voltage to zero at a specific RPM range. Then drive the car through this RPM range under some throttle load. The light should come on as you hit the low threshold area you just created and then turn off as you move past it. Don't forget to restore your knock calibration once your done testing.
While this light isn't the brightest nor does it have the rapid response time, it should come in handy to glance down at during a WOT burst to spot check for knock or confirm if what the seat of your pants is telling you is really the result of the knock control kicking in. I've set this up and it works. I'm going to try this out for awhile. If it works well I'll wire up a bright jumbo red LED and install it so it's sticking up out of the top of the dash over the instrument cluster.
I was thinking of using something like this but somehow on a different switch since I use that input for my Alky Injection safegaurd. No light but a buzzer so you can hear it. Just a thought.
http://www.surplustronics.co.nz/shop...t-SBP0100.html
http://www.surplustronics.co.nz/shop...t-SBP0100.html
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