Walker Sensor 235-1239 Walker Products Engine Camshaft Position Sensor, 235-1239 235-1239 Vehicle Camshaft Positioning Sensor Sends camshaft position information to the onboard computer Walker Products® 235-1239 - Camshaft Position Sensor The computer uses this and other inputs to calculate injector on time and ignition timing Engine Camshaft Position Sensor. 100% environmental, endurance and end-of ... Walker Camshaft Position Sensor - 1994-1998 Toyota T100 #235-1239. $38.97 Determines the camshaft position 1997 Toyota 4Runner - Camshaft Position Sensor, Sold individually, 6 Cyl 3.4L 235-1239 by Walker Products No scheduled service for a camshaft positioning sensor therefore, the part must be replaced when failure occurs