AutoCodesChevrolet – P2033 Chevrolet

P2033 Chevrolet Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

Quick Answer

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor 2 circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P2033 Chevrolet indicates Exhaust Gas Temperature Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor 2 circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 5,950
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 03, 2022
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Code P2033 Chevrolet Description

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Exhaust temperature sensor 1 is the first exhaust temperature sensor in the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The exhaust gas temperature sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will ve set when the ECM detects that the exhaust gas temperature sensor is greater than 900 Ω for greater than 2 s.
OBDII Code P2033 Chevrolet - Exhaust Gas Temperature Sensor 2 Circuit High Voltage - AutoCodes.com
P2033 Chevrolet Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

What are the Possible Causes of the DTC P2033 Chevrolet?

  • Faulty Exhaust Gas Temperature Sensor (EGTS) 2
  • Exhaust Gas Temperature Sensor 2 harness is open or shorted
  • Exhaust Gas Temperature Sensor 2 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2033 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2033 Chevrolet 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.

Need more information about the P2033 Chevrolet code?

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Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2033 Chevrolet Code

What does the OBDII code P2033 mean for a Chevrolet?

P2033 indicates a high voltage issue with Exhaust Gas Temperature (EGT) Sensor 2, which monitors exhaust gas temperatures to protect components like the catalytic converter.

What are the common symptoms of P2033 in a Chevrolet?

Symptoms may include an illuminated check engine light, poor fuel efficiency, reduced engine performance, or the activation of limp mode in some cases.

What causes the P2033 code on a Chevrolet?

Common causes include a faulty EGT sensor, damaged sensor wiring, a short circuit, excessive exhaust temperatures, or an issue with the vehicle's PCM.

Can I drive my Chevrolet with the P2033 code active?

Driving with P2033 is not recommended as it may lead to further damage to the exhaust system or catalytic converter if high temperatures are not properly monitored.

How do I diagnose the P2033 code on my Chevrolet?

Diagnosing involves checking the EGT sensor for proper operation, inspecting wiring and connectors for damage, and testing the circuit for continuity or short circuits.

How do I fix the P2033 code on a Chevrolet?

Repairs may include replacing the EGT sensor, repairing damaged wiring or connectors, or updating/reprogramming the PCM if necessary.

Is the P2033 code covered under warranty on a Chevrolet?

It depends on your vehicle's warranty. Emissions-related components like sensors may be covered under the emissions warranty, so check with your dealership.

How much does it cost to fix the P2033 code on a Chevrolet?

Repair costs vary but typically range from $100 to $300, depending on whether the EGT sensor or wiring needs replacement and labor rates in your area.

Can a dirty or clogged exhaust cause the P2033 code?

Yes, excessive exhaust buildup can lead to elevated temperatures, potentially triggering the P2033 code by affecting sensor readings.

How can I prevent the P2033 code from occurring on my Chevrolet?

Regular maintenance, including inspecting exhaust components and ensuring wiring is intact, can help prevent P2033 from occurring.

Discuss the causes and fixes for P2033 Chevrolet OBDII Code

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