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Nissan 300ZX Problems

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.

(3 people reported this problem)

Nissan 300ZX Vehicles With This Problem

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Average mileage: (–)
3 model years affected: 1990, 1991, 1992
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Brake problem? Or maybe a faulty head gasket cylinder?
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