Air injection components may fail and cause vehicle to fail smog test on Nissan 300ZX

Problem Description and Possible Solution

If the vehicle fails the “State Smog Test” due to high emission readings, components in the pollution control system (air injection components) may have failed due to moisture and may need to be replaced.

Problem Data
RepairPal Verified
Average mileage: (–)
3 model years affected: 1990, 1991, 1992
3 people reported this problem