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



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.










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