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On 4 Jul 2001, at 23:46, Dave Hall wrote: > Found a reference to CO level in FI from the Fuel System manual (and > also in a service guide). Mostly they don't quote for the Type 3, as > you can't normally adjust it anyway. They quote 0.7% CO for the > adjustable units (mostly fitted to the Type 4, but they did supply > 'brains' with a potentiometer as service parts for Type 3s). Really? I've never seen one and there's no mention of it in the Bosch service literature that I have. OTOH, they give a number of ECU substitutions that are possible if you are in a crunch, so I suppose that some of those might be from cars with the CO knob. It would take a lot of digging to figure this all out because they only go by Bosch number. > When I first got my Type 3 FI working, it was 'hunting' badly, and the > CO level was scarcely above 0%, but when running nicely, 0.5% was > attainable. Does this mean that you adjusted the CO directly or that it just fell into line after you got everything else adjusted right? - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org