MS: Lets take this problem from a practical point of view, The car other-
wise runs fine? No stall from start stops? No reverse gear stall?
Does this happen during braking for the turn or while accelerating through the turn?
What happens in that engine compartment when you turn?
What moves while turning?
My suggestion would be to use a good flashlight/drop light to search
the engine for a possible short too ground, look for a wire that might be rubbing against a metal part.
If you do not find a wire rubbing, then you need to leave the engine running
and start moving all wires that route to your engine components: MAF,
TPS,Camshaft Sensor, Ignition Module, Etc.
You must take care around moving or hot parts!
That should find the culprit?
Good luck