hugemikeyd Posted March 3, 2023 Report Share Posted March 3, 2023 I am trying to understand how I can go about having the ECT that comes into my Link Monsoon G4X be used to power a stock coolant gauge. I believe that I need to have an Aux be used as a PWM, I am just not sure how to go about setting it up and searching this forum didn't reveal anything obvious to try. Hoping we can figure something that can help the next person Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 5, 2023 Report Share Posted March 5, 2023 Set it up as a GP PWM, 100Hz frequency, set up the PWM table as 2D with just ECT on one axis. You will have to determine the duty cycle needed for each temperature cell by experimentation. Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted March 6, 2023 Author Report Share Posted March 6, 2023 @HaveYouSeenAWizardSleepcurious if maybe you had figured this out and are willing to share more details? Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted March 6, 2023 Author Report Share Posted March 6, 2023 Here is my wild guess Quote Link to comment Share on other sites More sharing options...
Vaughan Posted March 6, 2023 Report Share Posted March 6, 2023 This is what I have for my SW20 MR2 I just tried different values to see where it sat on the gauge Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted March 6, 2023 Author Report Share Posted March 6, 2023 We landed roughly in the same place, in the RX7 the coolant gauge should be under half when it's at the proper temp of 180F, which is why i have that around 40% Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted May 12, 2023 Author Report Share Posted May 12, 2023 I finally am at my car and the suggestions seem to be working but i am seeing a fault from Aux 6 and the manual says "the hardware is not happy". What does that mean and how can I increase it's happiness? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 13, 2023 Report Share Posted May 13, 2023 Nothing to worry about, the aux outputs constantly do several tests for faults - short to ground, open load, short to vbat etc. I would guess the pull-up in the gauge circuit is lower than battery voltage so the short to ground test fails. Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted May 14, 2023 Author Report Share Posted May 14, 2023 awesome, thanks! Quote Link to comment Share on other sites More sharing options...
hugemikeyd Posted June 2, 2023 Author Report Share Posted June 2, 2023 I ended up adjusting things down a little, 30% seems to be what the stock sensor and gauge reports at operating temp and my car seems to be around 190F for that. Quote Link to comment Share on other sites More sharing options...
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