Bad Gas mileage

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Dinosaurdriftteam
Posts: 14
Joined: Fri Aug 23, 2013 2:33 pm
Car: 90 Nissan 300zx

Post

I have a 90 300zx and it is getting really bad gas mileage. I checked the codes and it said it was the o2 sensor. I changed the o2 sensor and it is still reading the same code 33.
Any sugestions?


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