P1122 Pontiac Code - Throttle Position Sensor Circuit Intermittent Low Voltage
Quick Answer
The Throttle Position (TP) sensor is a potentiometer. Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1122 Pontiac indicates Throttle Position Sensor Circuit Intermittent Low Voltage.
- Common causes
- Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1122 Pontiac Description
TP sensor Signal voltage should be about 0.6 volt at idle. The TP sensor voltage should increase to above 4.0 volts at wide open throttle (WOT).
What are the Possible Causes of the DTC P1122 Pontiac?
- Faulty Throttle Position Sensor
- Throttle Position Sensor harness is open or shorted
- Throttle Position Sensor circuit poor electrical connection
- Throttle Position Sensor not properly adjusted
How to Fix the DTC P1122 Pontiac?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1122 Pontiac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1122 Pontiac Code
What does the OBDII code P1122 mean on a Pontiac?
The P1122 code indicates an intermittent low voltage issue in the throttle position sensor (TPS) circuit, which can affect throttle response and engine performance.
What are the common symptoms of a P1122 code in a Pontiac?
Symptoms may include poor throttle response, engine hesitation, stalling, reduced power, or the illumination of the check engine light.
What causes the P1122 code to appear on a Pontiac?
Common causes include a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning throttle body, or issues with the powertrain control module (PCM).
Can I drive my Pontiac with a P1122 code?
Driving with a P1122 code is not recommended, as it can lead to poor engine performance, stalling, and unsafe driving conditions.
How do I diagnose the P1122 code on my Pontiac?
Diagnosis involves inspecting the TPS and its wiring for damage, checking the voltage signal with a multimeter, and verifying proper operation of the throttle body and PCM.
How do I fix the P1122 code on a Pontiac?
Fixes may include replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning the throttle body, or reprogramming or replacing the PCM if necessary.
What tools are needed to diagnose and repair the P1122 code?
You’ll need an OBDII scanner, a multimeter, and possibly tools to access and replace the throttle position sensor and related components.
How much does it cost to fix a P1122 code on a Pontiac?
Repair costs can range from $100 to $300, depending on whether you need to replace the TPS, repair wiring, or address other related issues.
Can a dirty throttle body cause a P1122 code?
Yes, a dirty throttle body can interfere with the TPS operation and lead to a P1122 code, so cleaning it may help resolve the issue.
Does the P1122 code always mean the throttle position sensor is bad?
No, the P1122 code could also be due to wiring issues, connector problems, or a malfunctioning PCM, so proper diagnosis is essential.
Discuss the causes and fixes for P1122 Pontiac OBDII Code
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