Having problems with your 1990 Nissan 300ZX ?

Catalytic converter smoking

\015 Smoke is coming from the catalytic converter and the back of the engine. it sounds like that its misfiring but I am not sure. Any help would be greatly appreciated\015 Posted / edited by AnonymousUser on : 16-10-2017

Answers :

Chech the ignition timing first.usually nissan vehicles has an ignition timing of 10 degrees before top dead center.after that clean or replace the spark plugs.use only unleaded gasoline.
Repair Help & Product Troubleshooting for 1990 Nissan 300ZX

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