P1240 ISUZU Possible Causes
- Faulty high-pressure fuel regulator
- High-pressure fuel regulator wiring harness is open or short-circuited
- Poor electrical connection in the high-pressure fuel regulator circuit
How is the P1240 ISUZU 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)
P1240 ISUZU Meaning
High-pressure fuel regulator circuit open is the generic description for the P1240 Isuzu code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the P1240 Isuzu OBDII code.