And I have the relevant Haynes manual.
(I also have the one for the GS, the CX, BX and even one for crappy Chinese Scooters)
I've been told by knowledgeable guys that the computer on most cars does NOT go into 'limp home' mode just because of a dead Lambda sonde. There's really no reason for it. Runnign with 'deafault values' just results in a slightly worse CO2 emission.
(I was told this after I replaced the coils, and before this current problem appeared.)