TwinTurbo.NET: Nissan 300ZX forum - What I see..
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Subject What I see..
     
Posted by Cjw3 on December 13, 2013 at 2:57 PM
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In Reply To Re: Help for smog posted by Obsolete84 on December 13, 2013 at 02:13 PM
     
Message Looks like running rich.. HC up.. CO up.. and NO Down.. Running rich keeping the temps down.. Leaking Injectors?? Dirty MAF?.. Bad O2 Sensors ( Not the heaters.. the Actual O2 Sensor )

Do you have any ECU troubleshooting skills?.. Sounds like you might need to pull any codes the ECU has and address them first..

DO the O2 Sensor Mixture check at 2500 RPM to count the 'Crossings' of the O2 Sensors.. the FSM talks about it..

Check the EGR for leaks..

The List is endless.. how patient are you?.. its an old car..

Cj

     
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