Hey Stu, is good to hear from someone that has the same car trouble as me. My car does the same thing, it shudders and sometimes its stalls.
The gas here in Peru is pretty bad 97 oct is the highest one can get.
My lambda sensors are fine... i had them both checked. My injector are fine as well. I think my problem has more to do with what you are talking about. Can you please explain what kind of mods did you do to your sensors??
I got the manual online, its like 11 megs so i cant post it here. Tell me another way. The car is great but i cant stand the engine anymore, i think i might have to sell it soon. Hope to hear from you soon,
Nando