hey guys...just thinking out loud here...
over the past year I've been playing with the Parallax Propeller microcontroller platform...it has 8 cores, each with 2 hardware timer.
I'm thinking that I could get rid of the VW TDI ECU, and drive the pump with the microcontroller.
it appears that the TDI pump controls injection timing by increasing pump body pressure, similar to our old pre TDI pumps. The TDI pump has no governor, just a servo moving the control collar.
I think I could write software to drive the Injection quantity servo, and read engine temp sensor, boost sensor, crank position sensor, #3 cyl injection sensor, and drive the turbo vanes...
It would make an interesting exercise, anyway...
It's really easy to generate PWM signals with this controller, and the controller is dirt cheap...
Does anybody know what the signals looks like on the various TDI pump inputs, and outputs?
Ken
PS My diesel Cabby with the ALDA modified for boost is still running well...