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littlefeck

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Posts posted by littlefeck

  1. Analog Input Fault

    in G4+

    Posted

    I am currently having an issue with an analog input AN8, It constantly shows a voltage in PC link of 5.5 volts. This remains the same regardless of whether I have it connected or not. It is reading the position from an actuator valve which outputs 0.5V to 3 Volts. I have back-probed the Input where is connects to the ECU (white/Yellow wire)  and it reads correctly on a multi-meter. Any suggestions on where to start?

  5. G4+ Mazda RX8 CAN Bus

    in G4+

    Posted

    The rx8 immobiliser is made up of the engine ecu, remote keyless entry box (rke) gauge cluster and the key pickup. When you remove the stock ecu the immobiliser function is now gone. Everything should work but youll get a flashing light on the dash. The rke has a wire that flashes this directly to the gauge cluster. If you cut this wire the light will be gone. Ill look at my wiring diagram for you tomorrow. 

  6. G4+ Mazda RX8 CAN Bus

    in G4+

    Posted

    I am having trouble to set up the Cruise control light. I believe I have the correct ID (Message id="0x165" (decimal 357))

    How can I set the different values to output correctly?

    Cruise Main Indicator" offset="6" length="3" endianess="big"
                    off value=0
                    ready, not active (yellow) value=2
                     ready, value set (yellow" value=3
                     active, value set (green) value=5

    CAN.png

  7. CAN Bus Channels

    in G4+

    Posted

    I am currently using a link xtreme ecu in a Mazda RX8, I have set up CAN 2 to talk to the existing car network in place of the factory ECU. Is it possible to send/receive more than 6 channels or is it possible to send multiple CAN IDs from one stream?

  9. G4+ Mazda RX8 CAN Bus

    in G4+

    Posted

    @Adamw Hi Adam, I am currently trying to configure the CAN bus on my base map but am having some difficulty making sense of the example data to plug into it. Also is it possible just to send a frame of data to keep the power steering working -

    200 00 00 FF FF 00 32 06 81 // EPS doesn’t work without this

    202 89 89 89 19 34 1F C8 FF // EPS doesn’t work without this

    http://www.madox.net/blog/projects/mazda-can-bus/ has additional information but I cant make sense of the ID that sends individual wheel speed (link ECU receives)

    000004B0 0,1     Left Front Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
    000004B0 2,3     Right Front Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
    000004B0 4,5     Left Rear Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
    000004B0 6,7     Right Rear Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
    000004DA 0,1     Steering Column Angle (X-32768)/10 Degrees, Clockwise +ve.

     

    The id is shown above as 000004b0 but the ID in the ECU is numerical only.

    I have attached my base map and am using CAN bus 2

     

     

     

    rx8.pclr

  11. Staged tertiary injector

    in G4+

    Posted

    I'm looking at setting up a link xtreme ECU on a Mazda RX8. This is a 2 rotor engine and stock has 3 injectors per rotor for 6 total. the second and third injectors do not operate until appropriate intake valves in the manifold have opened (secondary valve opens at approx 4k rpm and the tertiary opens at approx 6krpm).

    Is it possible to set up staged tertiary injection (I can only see options for secondary injection) or would it be easier  just to run a larger secondary and drop the third injector.

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