NOx Adsorptive Catalyst System Efficiency Below Threshold
Table of contents
P1420 Possible Causes
- Faulty Catalyst Temperature Sensor Failure
- Software update
How do I fix code 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’s pins.
Cost of diagnosing the P1420 code
The cost of diagnosing the P1420 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1420 Description
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 about the P1420 OBDII code.Still have questions? Please post your question on our Comments Section below for more information.