Follow Private Mechanic Ben Wrench as he diagnoses an intermittent power loss issue in a 1997 Ford Ranger (2.3 L 4-cylinder). #noir A burnt out Check Engine Light bulb delays an accurate diagnosis. But a stored OBD II code indicates something is wrong with the Camshaft Position Sensor circuit (P0340). The sensor checks out. But the wiring harness doesn't. Who is responsible for this crime? Can Ben Wrench bring them to justice? Find out! I hope you enjoy this little film noir homage, featuring a "private mechanic" in place of the usual private investigator--are they really so different? Electrical problems in vehicles can seem impossibly difficult, but a logical process, plus some help from a local expert, make the prospect of diagnosing an electrical problem manageable.