Question for HUW Powell or anyone else

[Tony Hoffman]

So, you still have the original ECU from my understanding? If that's the
case, adjust everything to original 4000Q specs, as that's the management
system you are using and adapting to. As for the knock sensor setup, it's
pretty easy to put one in from an 85-86 GTI/GLI 8v. COmpletely self
contained, having nothing to do with the fueling system. That's what I've
done on several cars where I've installed a high compression engine where
there wasn't one originally. And, they use the stock distributor as well.

Have you cleaned and checked the ISV?

Tony

On Sun, Jul 29, 2012 at 12:13 AM, Bill Green <wgreen56 at tampabay.rr.com>wrote:

> 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.