> How does it work? Fuel pressure, injector firing time, or what?

I usually get this backward but I believe it is the engine coolant temp sensor reading that's monkeyed with. As an aside, there is a way to statically change injector timing but it involves slightly rotating the trigger contacts in the distributor. I've not tried this but I've heard it is not much of a difference.

While we're at it, make a note of the ECU part number. I had one that was supposedly for a B20 but the ECU p/n was for a 164E. Ran OK but the idle had a bad habit of getting slower and sloower and slooower until it wouldn't stay running at lights. This was over the course of an hour or more.

> How do I actually set it without O2 or exhaust temp sensing?

The adjustability is enough that you could easily make things lean enough to do damage. I guess you could check plugs compulsively and listen for pinking.


> Does it work well enough?

I have one and I think it's fine. Not great, but fine. Makes a difference though.


Would MegaSquirt or even a Weber work better?

Yes and no, respectively. Well, depends on the Weber you mean. D-jet is like buckskins and stone axes compared to modern systems but it still responds better to changing demands and conditions than a DGV.

That's my 2 cents.
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Justin 66 122E
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