Hi, i recently had a P0073 OBD-II Trouble Code: Ambient Air Temperature Sensor Circuit High input.
After reading the advices of the origin on LOST, i found that the cable to the sensor had been worn out and was naked

i just replaced the cable, erased the code and that was done .

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Silver CRD
ASFIR skid front & central elements, MOPAR gas tank skid - SAMCO Turbo hoses - 4 breathers extension
2006 gaser airbox - Frankenlift with Koni at front.
Airtex lift pump