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P2033 OBD2: Exhaust Gas Temperature Sensor Circuit High

P2033 OBD2: Exhaust Gas Temperature Sensor Circuit High

The P2033 OBD-II code is associated with the exhaust gas temperature sensor circuit, indicating that the sensor is reading a high signal. This code can be a precursor to more serious engine issues if not addressed promptly.

What Does the P2033 Code Mean?

OBD-II Code P2033 is defined as an Exhaust Gas Temperature Sensor Circuit High. The exhaust gas temperature (EGT) sensor is crucial for monitoring the temperature of the exhaust gas exiting the engine. A high reading from this sensor indicates a possible malfunction that needs immediate attention.

What Causes the P2033 Code?

Several factors can trigger the P2033 code, including:

  • Exhaust Gas Temperature (EGT) sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues within the exhaust gas temperature sensor circuit

What Are the Symptoms of the P2033 Code?

Common symptoms associated with the P2033 code include:

  • Decreased engine performance

While decreased performance is the primary symptom, it can signify potential underlying issues that may need to be diagnosed.

How Serious Is the P2033 Code?

The P2033 code is considered to have moderate severity. Although it may not pose an immediate threat to safety or functionality, it is essential to have it diagnosed and repaired within a reasonable timeframe to ensure the vehicle continues to operate effectively.

How to Diagnose the P2033 Code

Diagnosing the P2033 code typically involves the following steps:

  1. Using an OBD-II scanner to confirm the code and check for any related codes.
  2. Inspecting the EGT sensor and its wiring for signs of damage or corrosion.
  3. Testing the EGT sensor’s resistance and voltage output to ensure they are within manufacturer specifications.
  4. Checking the Powertrain Control Module (PCM) for possible faults.

Common Repairs for the P2033 Code

Common repairs for the P2033 code may include:

  • Replacing the faulty exhaust gas temperature (EGT) sensor.
  • Repairing or replacing damaged wiring in the EGT sensor circuit.
  • Reprogramming or replacing the Powertrain Control Module (PCM) if it is found to be faulty.

How Much Does It Cost to Fix the P2033 Code?

The cost to fix the P2033 code can vary significantly depending on the repair needed:

  • Replacing the EGT sensor may cost between $100 and $300, including parts and labor.
  • Wiring repairs can range from $50 to $200 based on the extent of the damage.
  • PCM replacements or reprogramming can be more expensive, potentially costing $500 or more.

Can I Fix the P2033 Code Myself?

Depending on your mechanical skills, you may be able to fix the P2033 code yourself. If you have experience with automotive repairs and have the necessary tools, replacing the EGT sensor or repairing wiring issues can be manageable tasks. However, if the problem lies with the PCM, it’s advisable to seek professional assistance to avoid further complications.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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