Does Dodge Journey have throttle position sensor?
Yes. The Dodge Journey uses a throttle position sensor as part of its electronic throttle control system. The sensor provides feedback on the position of the throttle plate to the engine control module.
Across the Journey’s gasoline engine lineup, the throttle position sensor sits on the throttle body and works with the accelerator pedal position sensor to determine how open the throttle should be. This drive-by-wire setup is standard for the Dodge Journey from its early years through its production run.
How the throttle position sensor works in the Journey
The throttle position sensor (TPS) monitors the angle of the throttle plate inside the throttle body. It sends a voltage signal to the engine control module (ECM/PCM) that corresponds to how far open the throttle is. The ECM combines this data with the accelerator pedal position and other inputs to regulate fuel delivery and ignition timing. In the Journey, this is part of the drive-by-wire throttle system; there is no direct throttle cable connecting the pedal to the engine.
Engine options and throttle control
The Dodge Journey was offered with engines that all use electronic throttle control, meaning a TPS is present in each configuration.
- 2.4L inline-4 Tigershark engine (gasoline), with electronic throttle control and the throttle position sensor integrated into the throttle body.
- 3.6L Pentastar V6 engine (gasoline), with electronic throttle control and a throttle position sensor on the throttle body.
In short, all common gasoline engine options for the Journey use a drive-by-wire throttle system that relies on the TPS for precise throttle control.
Common TPS symptoms in the Dodge Journey
If the throttle position sensor or its circuit begins to fail, you may notice one or more of the following symptoms:
- Slow or unresponsive accelerator input, hesitation when pressing the gas pedal.
- Rough idle, stalling, or irregular idle speed.
- Check Engine Light on, often accompanied by diagnostic codes related to throttle position or throttle actuator.
- Erratic throttle response, including surging or sudden changes in engine speed.
These signs warrant diagnostic testing with an OBD-II scanner to verify TPS data and wiring integrity. A technician may inspect live data from the TPS and pedal position sensors and, if needed, replace the sensor or the throttle body assembly.
Diagnosis and maintenance considerations
What to do if you suspect a faulty TPS in your Journey:
- Use an OBD-II scanner to read codes and monitor live throttle position versus pedal input data.
- Inspect the throttle body and TPS connector for damage, corrosion, or loose wiring.
- Perform a voltage test on the TPS with the ignition on and the engine off, then with the pedal moved, to verify expected voltage ranges (values vary by engine; consult a service manual).
- If the TPS or throttle body is failing, replacement of the throttle body assembly is often required, though some models may allow sensor-only replacement.
- After replacement, clear codes and perform any required throttle-adaptation procedure.
Note that work on the throttle system should be performed by qualified technicians, as improper handling can affect drivability and idle control.
Summary
The Dodge Journey relies on a throttle position sensor as part of its electronic throttle control across its gasoline engines. The TPS provides critical feedback to the engine control module to regulate air and fuel delivery in a drive-by-wire setup. Common symptoms of TPS issues include sluggish response, rough idle, or a check engine light, and diagnosis typically involves live data checks and, if needed, throttle-body replacement.
