Re: [DML] Tuning Idle Speed Circuit. (was: Re: idle problem)

[Martin Gutkowski <webmaster@xxxx>]

Let me try to help you understand... The Renault manual for the system 
on our cars (common to the Renault 30) tells you how to balance the 
banks on the screws, and give the engine enought to idle with *when 
under no other load*. The idlespeed system then adjusts for additional 
load on the alternator or by the ac compressor, and fluctuations in the 
lambda system. Setting the engine up this way will prevent the 
charachteristic hunting, and often will cure the "deep" hunting caused 
by an over lean mixture, often still apparent on factory original cars.

I've shown my DMC workshop manual to my PRV guy and his comments (though 
not very polite generally) were basically that Renault were pulling a 
fast one on DMC because somebody didn't want to give them the proper manual!

Martin

David Teitelbaum wrote:

> By allowing air to go through the "brass screws" or the manual idle
> circuit you are reducing the amount of control that the idle motor has
> over the idle speed. It cannot compensate (control) the idle as well.
> In one sense it is like vacuum leaks. IMHO either stay with the idle
> motor circuit or leave it, I don't see how you can have both.