P1034 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 P1034 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 out, or corroded connector pins.
Possible Symptoms
Check engine light on (or service engine soon warning light)
P1034 Meaning
Nitrogen oxide sensor signal out of tolerance is the generic description for code P1034, 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 P1034.