So my gremlin still exist.
I keep getting code P06D3 Sensor reference voltage 5 circuit low.
What I have discovered is when pulling a load mainly up hill the truck will sputter and loose power and throw the code and check engine light comes on.
What I have noticed is that the rpm's are getting down to about 1500 rpm and the truck should be automatically down shifting.
If I manually shift gears and keep the rpm's up 1800 plus the truck works great. Also, I feel my fuel mileage is suffering.
So here is my thoughts on this. I have already changed the crank and cam sensor's, and am wondering if the MAP and Mass Air Flow sensor's are bad.
The truck starts easy and runs fine, I just feel I should be getting better fuel mileage (about 16 mpg actual).
Another thought is that a solenoid in the tranny (Asisn) is bad.
Any input would be appreciated.
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