P1033 Possible Causes
- Faulty nitrogen oxide (NOx) sensor
- Nitrogen oxide (NOx) sensor wiring harness is open or short-circuited
- Poor electrical connection in the nitrogen oxide (NOx) sensor circuit
How is P1033 Code Repaired?
Start by checking the “possible causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed back, or corroded connector pins
Possible Symptoms
Check engine light on (or service engine soon warning light)
P1033 Meaning
Nitrogen oxide sensor signal too low is the generic description for code P1033, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about OBDII code P1033.