P1121 ISUZU Possible Causes
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Poor electrical connection in throttle position sensor circuit
How to Fix P1121 ISUZU Code?
Start by checking 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.
Possible Symptoms
Check engine light on (or service engine soon warning light)
P1121 ISUZU Meaning
Throttle position sensor circuit lower than expected is the generic description for P1121 Isuzu code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about the P1121 Isuzu OBDII code.