Thursday, October 26th, 2017 AT 6:10 AM
Hi, my car TPS (throttle position sensor) has been given me problems. The engine rpm surges at 1500 rpm in idle when I press the gas pedal. But when I remove the TPS 3 pin socket from the throttle body and press the gas pedal, the surge is gone. Reconnecting it surge comes back again. Even when am driving, the engine surges at 1500 rpm especially when gear wants to change. I use DMM meter and check the setting. At close throttle, the reading is 0.5 volts and 4.44 volts at full open throttle. Do I have to reset the reading or change the TPS completely? And when I check the 3 pin wires to identify the ground wire, one is reading five volts other's show no reading. The one that reads five volts is colored yellow with a blue stripe.