Finally got the wideband O2 sensor up and running on the SD1 - prior to fitting the MegaSquirt. Thanks to Longlife in Carshalton for doing the job
- after I'd put the boss in the wrong place so the cable got fouled. ;-)
Driving back from there - with the original EFI, obviously, but the Tech Edge unit fired up, the display showed it on the rich side of stoic almost all of the time. When cruising at 30 I'd have expected it to lean out a bit. Anyone know what should be expected at idle? No cat, of course. Seemed to be pretty rich at about 12.8 or so.