led 18 fan control and q's

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turbothis
Master MS/Extra'er
Posts: 405
Joined: Sat Aug 18, 2012 8:54 pm
Location: southern oregon

led 18 fan control and q's

Post by turbothis »

a long time ago led 18 negative leg would run the fan no problems via relay
at some point it stopped and i just used my bypass switch to do it manually
my settings look good and tunerstudio green lights the tab when working but i get no led lighting up or action out of the negative leg
is there a way to test or trouble shoot the led 18 hardware?

also when i am tuning some adjustments seem to make no difference
in warm up wizard, if i jump up to 200% where the motor temp is at i get no increase in mSec pulse width???
pretty much the same in the fuel table, raise it way up with no difference in the pulse width

the pulse width gauge should be the ultimate fuel consumption meter right?

i have a weird lean spot right about 2500 rpm that will not change with huge fuel map increases or decreases

thanks matt
2002 montero dakar rig
3.0L DOHC duratec / 6HP26
gt3582 boost to the moon
Ms3X soon to be running

dodge M37 look-a-like 1 ton
4.2l chevy atlas / 6R80
66mm turbocharger ~8#
Ms3X sequential finally kicking some butt
Matt Cramer
Super MS/Extra'er
Posts: 17499
Joined: Thu Apr 16, 2009 8:08 pm

Re: led 18 fan control and q's

Post by Matt Cramer »

Try removing the CPU and applying 5 volts to U1 pin 9. See if the LED comes on and if the relay triggers. If not, it sounds like you've most likely got a burned transistor.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
turbothis
Master MS/Extra'er
Posts: 405
Joined: Sat Aug 18, 2012 8:54 pm
Location: southern oregon

Re: led 18 fan control and q's

Post by turbothis »

cool, sounds like fun i will try that asap
thanks
2002 montero dakar rig
3.0L DOHC duratec / 6HP26
gt3582 boost to the moon
Ms3X soon to be running

dodge M37 look-a-like 1 ton
4.2l chevy atlas / 6R80
66mm turbocharger ~8#
Ms3X sequential finally kicking some butt
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