Try checking the wires into the steering pump load sensor. they rub on the bonnet and break and give a stall when turning

A quick check is to unplug and plug in the sensor while running, it should result in a change of rpm

Take a look at the idle problems page on my web site for more info

Mad Mole
Visit Mad Moles Mondeo Madness
2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
192 BHP, Faster than a speeding Duratec!