Fasteddy
Member
Hi, I pulled the cable apart and earthed the other pin, all working as it should and reading the coolant temp to.
my scan tool is a few years old so maybe it was that. I have noticed the TP is 89.5% WOT, shouldn't it be 100%
and if so I think it'll be worth looking to make sure the butterfly is fully opening
No I do not believe it should be 100%, this is a common misconception. There needs to be some room at the other end of the range so that the idle speed control motor can maintain correct Idle speed. I know when you reed this it won't make sense, but the ECU knows that X% = WOT from the calibration process. For a better understanding of this you could read up on the Kehien fuel management system used on the LC8's or search some 990 forums.