I've got the above on my saph in my MSD chip, it plays up once the engine gets to 70 degrees c then it revs up and down with the afr fluctuating between 14 and 16 erratically , any ideas what's up ? I've tried to get through to James but had no luck so far today. I've left the lambda sensor unplugged for now and it's idling great again will it be ok like that ?