Got a bit of an odd idle situation on my E36 325i convertible. The car is converted to 2.8 but running full OBD1 electronics, so it's in an identical guise to the 325i electronically.
Runs absolutely fine in normal driving, sometimes a little hesitation but nothing major. When I coast downhill though, say in a multi-storey car park, the idle starts hunting and almost stalls. At the same time i'm steering too.
I've changed vac pipes, intake elbow, cleaned ICV, all new manifold gaskets. Wondering if the parasitic drain of the PS pump can cause this, or is it to do with the downhill element? Anyone got any ideas?!