spinz71

iTrader: (1)

What voltage should the TPS be reading at idle? '02 5.3, cable TB.
TIA

DrX

iTrader: (7)

Here' my second try. I originally copy/pasted from the wrong section.

From the manual:

"Circuit Description
The throttle position (TP) sensor is used by the powertrain control module (PCM) to determine the throttle plate angle for various engine management systems. The TP sensor is a potentiometer type sensor with three circuits:

• A 5-volt reference circuit
• A low reference circuit
• A signal circuit

The PCM provides the TP sensor with a 5-volt reference circuit and a low reference circuit. Rotation of the TP sensor rotor from the closed throttle position to the wide open throttle (WOT) position provides the PCM with a signal voltage from less than 1 volt to greater than 4 volts through the TP sensor signal circuit. "

spinz71

iTrader: (1)

Thanks DrX. So .51v at idle is okay. Thanks again.

DrX

iTrader: (7)

Seems OK. Throttle should be closed and the IAC should be taking care of idle airflow. If it falls too low it would trigger a DTC. That's right where the electronic throttle TP sensors are at if you hold the blade fully closed.