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P202E Code - Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1

- Code Popularity: 24,958 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P202E?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Reductant Fluid Injector
  • Reductant Fluid Injector harness is open or shorted
  • Reductant Fluid Injector circuit poor electrical connection
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How to Fix the DTC P202E?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P202E code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P202E Description

The Selective Catalytic Reduction (SCR) system reduces oxides of nitrogen (NOx) emissions by injecting a metered amount of Diesel Exhaust Fluid (DEF) or reductant into the exhaust gas stream entering the SCR catalyst. Within the SCR catalyst, the DEF reacts with the NOx to form nitrogen, carbon dioxide, and water vapor. Upstream and downstream NOx sensors provide the Engine Control Module (ECM) with engine-out and tailpipe-out NOx levels. The ECM varies the amount of DEF added by varying the reductant injector duty-cycle in response to changes in engine-out NOx levels.

OBDII Code P202E - Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1 - AutoCodes.com
P202E Code - Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1

Need More Information on the Code?

Need more information on how to fix the P202E code? Get Access to Factory Service Manuals

Information for Specific Makes

  • P202E Chevrolet Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1  
  • P202E GMC Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1  

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