What should the voltage be on a TPS 2?
With the scan tool, perform the ETC Throttle Follower Test. Monitor the TPS 2 voltage, slowly press the accelerator pedal down. The voltage for TPS 2 should start at approximately 4.3 volts and increase to approximately 0.7 volts. Is the TPS 2 voltage within the range of the listed specification?
How is the TPS signal supplied to the VTA terminal?
The TPS voltage signal is supplied to the VTA terminal. A ground wire from the TPS to the E2 terminal of the ECM completes the circuit. At idle, voltage is approximately 0.6 – 0.9 volts on the signal wire.
What is the voltage of the throttle plate?
A ground wire from the TPS to the E2 terminal of the ECM completes the circuit. At idle, voltage is approximately 0.6 – 0.9 volts on the signal wire. From this voltage, the ECM knows the throttle plate is closed. At wide open throttle, signal voltage is approximately 3.5 – 4.7 volts.
Where is the TPS signal supplied to the ECM?
The TPS voltage signal is supplied to the VTA terminal. A ground wire from the TPS to the E2 terminal of the ECM completes the circuit. At idle, voltage is approximately 0.6 – 0.9 volts on the signal wire. From this voltage, the ECM knows the throttle plate is closed.
What is the voltage of the TPS signal?
You need to check the TPS wiring with a multimeter. The gray wire carries 5 volts, constant. The dark blue wire carries the voltage varied by the TPS to the engine computer Sensor Signal input. This voltage will vary according to the throttle position, from 1 to 5 volts (or, from 5 to 1 volts).
What should the base voltage be for the throttle position sensor?
Once the car or truck starts and is idling and since the throttle is closed, the TPS sends a base throttle position signal of about 0.5 to 0.9 Volts to the PCM on the Blue wire (this voltage will vary slightly on your vehicle but should be within the 0.5 to 0.9 Volts DC).
What happens when a TPS sensor goes bad?
The data provided by TPS is invaluable for proper starting, idling, and easy throttle response. These operations are affected when a bad throttle position sensor feeds erroneous data to the car’s computer. Because of this, the following can occur: 1. Difficulty while changing gears.
How to test the resistance of a TPS?
You can test a TPS in two ways, You can simply test the resistance with an Ohm meter or you can test the voltage change that occurs in the reference circuit. The mistake you are making is connecting the multimeter to the negative battery post.