Engine-Codes - Generic - P1420

P1420 Code - NOx Adsorptive Catalyst System Efficiency Below Threshold

- Code Popularity: 29,379 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P1420?

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 Catalyst Temperature Sensor Failure
  • Software update
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How to Fix the DTC P1420?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1420 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1420 Code Mean?

NOx Adsorptive Catalyst System Efficiency Below Threshold is the generic description for the P1420 code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1420 OBDII code.

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P1420 Code - NOx Adsorptive Catalyst System Efficiency Below Threshold

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Code P1420 Information for Specific Makes

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