Chevrolet Corvette C5 DTC P1120 – Throttle Position (TP) Sensor 1 Circuit
DTC P1120 meaning on Chevrolet Corvette C5
The DTC P1120 on a Chevrolet Corvette C5 indicates an issue with the Throttle Position (TP) Sensor 1 Circuit. This sensor is responsible for monitoring the position of the throttle valve and sending signals to the engine control module (ECM) to adjust fuel delivery and ignition timing accordingly.
Chevrolet Corvette C5 DTC P1120 symptoms
Some common symptoms associated with DTC P1120 on a Chevrolet Corvette C5 may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine power or acceleration
- Stalling or rough idling
- Poor fuel efficiency
Chevrolet Corvette C5 DTC P1120 causes
The DTC P1120 on a Chevrolet Corvette C5 can be triggered by various factors, including:
- Faulty Throttle Position Sensor (TPS)
- Wiring or connector issues in the TP sensor circuit
- ECM software or hardware problems
Chevrolet Corvette C5 DTC P1120 seriousness
While the DTC P1120 may not always result in immediate drivability issues, it is essential to address this problem promptly to prevent potential engine performance issues and further damage.
How to diagnose DTC P1120 on Chevrolet Corvette C5
Diagnosing DTC P1120 on a Chevrolet Corvette C5 typically involves the following steps:
- Use a diagnostic scanner to retrieve the trouble codes stored in the ECM
- Inspect the TP sensor and its wiring for any visible damage or corrosion
- Perform a voltage test on the TP sensor circuit to check for proper signal output
How to fix DTC P1120 on Chevrolet Corvette C5
To address DTC P1120 on a Chevrolet Corvette C5, you may need to:
- Replace the faulty Throttle Position Sensor (TPS)
- Repair or replace any damaged wiring or connectors in the TP sensor circuit
- Reset the ECM and clear the trouble codes
How to erase DTC P1120 on Chevrolet Corvette C5
To erase the DTC P1120 on a Chevrolet Corvette C5, you can use a diagnostic scanner to clear the trouble codes stored in the ECM. Once the issue has been addressed and fixed, clearing the codes will reset the Check Engine Light and ensure proper operation of the vehicle.
Recommended tools for Chevrolet Corvette C5 diagnostics
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