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ellisd1984

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Posts posted by ellisd1984

  12. ECU Grounds clarification

    in G4x

    Posted

    Hi Hopefully this one will e relatively quick.  To someone confirm off the 5 grounds on the ST205X which ones would go to the engine and which ones are sensor grounds?

    https://drive.google.com/file/d/1xdWj-UbhhMPSc3X8XG5zAbv-KnnFkmKk/view?usp=share_link

    https://drive.google.com/file/d/1gih1FLBDfTcnUts056UyOD-5Fou44Tzf/view?usp=share_link

    Are the 5v and Sensor grounds on the expansion loom brought from the same source as the main ECU pins? or is there a second feed?

    From what I've read I'm ok converting the Toyota speed sensor to a 5v feed.  Would I then need to ground this to sensor ground instead of the existing arrangement that grounds to the engine/chassis?

    https://drive.google.com/file/d/1XXLfIiY6CALhFM9O9uj5lvV56Ht0b1_4/view?usp=share_link

  14. Altering Calibration of Ethanol Content Sensor

    in G4x

    Posted

    OK, what I've done is to adjust the fuel properties of Fuel table 2 too hopefully represent the highest blend I'll use (50/50 petrol methanol mix). I've used the output from the ethanol sensor at this point to run off Fuel table 2 100% and the more petrol that is in the blend the closer I will go to Fuel Table 1 settings.

    Presumably for a 50/50 mix the fuel properties for both fuels would just be halved and added together.

    I know in theory with all these values set there shouldn't be a real need for the 2nd VE table but I will make any further adjustments in that table as and when they are needed.  I just didn't want to make all the adjustment in the VE table.   I can also log some points and see what fuel temp does to effect the Lambda value.  

     

  15. Altering Calibration of Ethanol Content Sensor

    in G4x

    Posted

    If I was to keep everything as is would it still inject the correct amount of methanol in using the modeled fuel equation?

     

    For example 50%meth equals around 70% eth on the sensor.  

    I can set the second fuel table to be 100% active at a reading of 70% eth content(blend 100%)

     

    My question is what properties will I need to put on for the second fuel?  Do I put the 100%methanol numbers?  And if I do will it overfuel because its trying to inject 70% instead of 50% because that's what the sensor is seeing

  18. Logging items received from CAN

    in G4x

    Posted

    The ECUmaster CAN transmit streams are pretty much locked from what I can see. All ypu can alter is the baseID and which frames of the 6 to send.

     

    I've got some CAN AN channels spare. Is it a case of just assigning them to free GP analog inputs, labelling them say "rad fan current" and then messing with the calibration to get the values to match? Something like 50a = 5v and 10a =1v

     

     

     

     

     

     

     

     

  20. Multiple ECUs triggering CE light

    in G4x

    Posted

    I was trying to avoid DI's as I'd ran out but I've managed to juggle things about. I can now have them both on DIs making the lights I currently wired in do what I want. 

     

    As the power steering pump isn't from this car there isn't a power steering light on the dash so I'm wanting to flash the CEL and ABS light together if their's a PS fault.

     

     

     

    Half the issue was I couldn't figure out the virtual aux system, I couldn't find their parameters. 

  21. Multiple ECUs triggering CE light

    in G4x

    Posted

    Hi Adam, yes they are doing as they should by lighting up on Power on but that was what confused me. Anything I would think to try in setting up would just trigger a fault on start up.   

     

    Both warning lights switch to ground to activate and take the 12v from the gauge cluster.  

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

  22. Multiple ECUs triggering CE light

    in G4x

    Posted

    Hi, I've tried messing on with some settings and I've managed to massively confused myself!

     

    What I'm wanting to do is add the warning outputs of my power steering and ABS ecus into the mix so they can all turn the check engine light on if there's a fault.  I was thinking about using an Ana input and 2 different sized resistors to give different values.  All I've managed to do is fry my suede through as the light light up for a few seconds on startup.

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

  24. G4x plugin wiring

    in G4x

    Posted

    Hopefully just a quick one. II'm rewiring my car and moving alot of stuff onto a pdm.  However, the stock ecu used to have both a permanent 12v feed and a switched 12v feed on a separate fuses.  

    Does the st205x pluging require this permanent feed, or is it happy just using a switched feed from the pdm?

    The manual shows both being used but not sure if it's required.

  25. Aircon issues on link g4x

    in G4x

    Posted

    I should probably add I didn't have the stock idle up valve which was probably causing the issues. 

    From what I can tell the Link doesn't get the "AC Activate" signal from the AC button when you push it.  It get the signal from the the feed leaving the AC amplifier that activates the clutch.  

    If you've got the stock Idle up valve then there is no issue as the AC button Activates the Idle up valve, rev's increase, clutch engages the same time as the Link get the AC signal.

    If the idle up valve isn't there, the Link doesn't get the signal until the clutch engages so it has no time to stop the engine stumbling.

     

     

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