Difficulty Level

Tools/Supplies Needed:

• multimeter
• phillips screwdriver
• razor knife
• standard/flat screwdriver

Procedure:

• first step is the ensure the throttle position sensor is step up correctly
• with the throttle plate fully closed, open the throttle very slightly and you should be able to hear an audible "click"
• if not the sensor is either broken or not adjusted correctly
• with the throttle plate fully closed, loosen the two phillips screws and rotate the sensor all the way clockwise until you feel it stop
• do not go too far so it opens up the throttle plate
• tighten down the screws
• now retest to see if it has an audible "click", if not the switch is broken
• now testing with the multimeter, remove the wiring harness plug
• on the side of the throttle position sensor, there will be numbers
• 3 (wide open throttle), 18 (input single), 2 (idle)
• using the multimeter on the ohms setting, we will be testing each plug to ensure it is working correctly
• with the throttle close, there should be continuity between pinouts 2 and 18, and an open circuit between pinouts 3 and 18
• with the throttle increased slightly, there should be an open circuit between pinouts 2 and 18, and an open circuit between pinouts 3 and 18
• with the throttle fully opened, there should be an open circuit between pinouts 2 and 18, and continuity between pinouts 3 and 18
• if the test fails, the sensor does need to be replaced
• the sensor can be opened up, although it is somewhat difficult
• using a razor knife, cut around the seam to break the glue
• then using a small standard screwdriver, slowly pry away the case
• once open, you can spray the microswitch with contact cleaner or clean the wide open throttle contacts (this is a temporary fix, I would recommend buying a new replacement sensor)