MG ZR: Cams & Maps

[lolsteve]

Yeah it's always been a niggle at the back of my mind but since the car has run and not mixed oil/water or overheated I assumed i'd gotten away with it. Dodgey compression seems to be a good cause of a misfiring idle although I'd put it down to the exhaust cam.
I've tried 3 different (used) lambda sensors but they all read the same. Connected up the reader to my friends vvc and was happy with his numbers (sensor voltage, stft, ltft) so there is something wrong with mine for sure. Will know when the head is off I guess and have a new lambda to fit when it's done