Quote Originally Posted by oj88 View Post
On most cars with hydraullic power steering that I've driven, the engine management computer raises the idle RPM when you turn the steering wheel. It takes into account the added load the steering pump is exerting on the engine.

The donor car with the ECCS system, probably did that. The GA13 isn't expecting the pump so it is not compensating for the added load.


that is correct, the car originally equipped with power steering has a pressure switch that gives input to the pcm to raise the engine rpm to compensate for the additional load. the receiving car that was not equipped with power steering do not have this pressure switch in the hi pressure line.