I have a code E65 "C/C Servo position sensor Failure " and I can not find the problem.

88 Fiero
91 Cadillac 4.9
StickPony Chip
Manual Transmission
No A/C
No Cruise

I read the codes with TunerPro RT

I read somewhere that this code might be caused by a "too low coolant temp" .Strangely, with a cold engine, TunerPro read 17 and -8.33 . 17 celsius is the temperature in my garage.

Any clue ?

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Cruise Control servo problem.

This error code should be (have been) programmed out of the chip.