hi mark just had a read at your post the faults you came up with were the same we had but like you i was thinking both sensors going at the same time was highly unlikely.i also had a tinker with the imrc box but ended up buying one for £180 but its only been on for a day so might try and fix the old one and send it back i take it yours is still working fine if anyone else has this prob here is the link to marks post thanks again mark

https://passionford.com/forum/techni...141-p1518.html