Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: diag codes PO400 PO440 PO446 on 1997 Infiniti I30

The car won't pass emmissions codes PO400 PO440 PO446. Does anyone know the fix for those problems?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Didn't find what you were looking for?