TwinTurbo.NET: Nissan 300ZX forum - How do I know if I am running rich/lean?
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Subject How do I know if I am running rich/lean?
     
Posted by dancefloor on September 19, 2019 at 8:58 PM
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Message Both my main cats and pre-cats are bad so I gutted them.
Now it smells pretty bad and I smell some fuel too.
So I hook up my datascan and see the A/F base = 100 and sometimes varying between 95-110. Is this indicating something?

I also use 5-gas analyzer and see when car started cold the HC value is about more than 300. After half an hour driving it would become 170-200 range. Does this mean something?

     
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