Question for HUW Powell or anyone else

[Bill Green]

Hi again! 

 

You may remember me as I am the lad who thought a loose starting motor was
really a serious knock in his new NG engine he just installed in Audi 4000s
quattro. The engine is installed now and seems to run strong. The only
problem is a brief stumbling when going to back to idle from higher rpm
before calming down and idling fine at about 750 rpm. 

 

My question is whether I should set the initial  mixture setting on the air
handler (using a rig exactly like the one you made to measure the milliamps
between the ecu and the differential pressure regulator) so it fluctuates
around 10 milliamps or 0 milliamps. I am using the original NG injectors and
a fuel distributor / DPR from an Audi 90 which had a NG engine in it. The
ecu and the air handler however are both from the original JT engine with
CIS-E  not CIS-III. I currently have the base mixture set to hunt around 10
milliamps. 

 

By the way the distributor is also from my old JT engine which utilizes a
vacuum advance setup since I don't have (and don't really want) the knock
sensor / electronically controlled timing thing. 

 

Should I set it to 0 or 10 milliamps? 

 

Thanks in advance.