Drive by wire weirdness?

[Mr Whippy]

Had just jet washed my car (306 Hdi) driving down a dual carriageway and hadn't braked, so just left my foot lightly on the throttle while I pressed the brakes.
Just being curious I left my foot on and after around a second or so the engine just went dead, and I could put my foot right down on the throttle and it just made no difference to the engine output...

Is this one of those tampering drive by wire things? Seems a bit odd that it would sense you were doing that and cut the throttle back!?

Or could there be a reasonable reason for it I wonder... Hmmmm??

Dave

[Mr Whippy]

Indeed, in snow you can left foot brake a fwd to get a very rudimentary diff lockup so both wheels drive, to hell with that idea now

Might see if I can un-tick that box in my ECU software editing mission

Dave