As far as I know there is very little 'Open' info on the VP37 at all. I have certainly not found any aftermarket ECUs only re-chips
I'm not clued up on the VAG ECU but certainly the Bosch unit in Land Rovers is totally locked down and the only way is to re-chip and even then you cannot tweak yourself. (other than an add on box that will 'fudge' signals)
Unfortunately I haven't got a PC based oscilloscope so will have problems logging waveforms out of the ECU - Anyone help?
The 'fuel quantity' is a PWM signal
The 'timing' is a PWM signal
the HDK sensor is fed with a 10khz AC signal and returns an AC signal whose amplitude is dependant on the position of the fuel lever.
haven't checked the crank sensor signal yet
TPS, MAP, IAT, CLT, MAF are all dc voltages
Topic: Controlling TDI pump (Read 8059 times)
