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Planned ECU mods
Want to add
- 2nd wheel speed for traction - can someone make a basic diagram how it should be done?
- Input Multiplex - again basic diagram would be nice for mods to the ECU required to run the multiplexer
- CAN BUS (when software is available to be able to add our own addresses?)
- PWM FAN control with VW J293 module - can anyone verify what modules are compatible? Like: 8E0959501AB 8E0959501K 8E0959501AG E0959501AG??
- The VW J293 from a Mk5 Golf is known good.
- But when mounting to a BMW why not use a Temic PWM controlled fan from for instance a e46 m54 engine?
- Unfortunately I don't believe I have the space with the 3 row Z3M rad between the water pump.
Is it possible to configure 3rd trigger to use as freq. input for Ethanol content sensor instead of tying up wheel speed inputs?
Added 2nd serial port but no communication to Afreshtiny?
I've added a connection to the 2nd serial port on my ECU to be able to drive my AfreshTiny without having to disconnect every time the main COM port to tune.
- so it was not ordered that way, but home-modified => details please
- first scope, or measure DC voltage on the ECU TX (DSUB9 female pin2), normally -7V when idle, and lower absolute value like -6V when transmitting).
- If not negative, than perhaps the ECU RX was accidentally connected instead (TX/RX swapped ?)
Unfortunately the AfreshTiny is completely unresponsive and shows no data. Can anyone assist with the setup? Is there something to enable?
FW: 1.2.38
- sniff RS232 stream (connect to PC and read with terminal, or linux screen command).
- you should see
- we will review your exact config (you forgot to show us, so we can hardly tell what you did wrong )
- perhaps baudrate is misconfigured ?
- in VT, logging, temporarily enable the necessary flags (like SD byte stuffing), configure "GPS baud rate"
- in the end, disable SD byte stuffing (and possibly SD logging altogether, configure knock input channels if necessary)