TwinTurbo.NET: Nissan 300ZX forum - Because your fuel pressure is fine I would venture to say
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Subject Because your fuel pressure is fine I would venture to say
     
Posted by treese88 on May 10, 2012 at 9:50 AM
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In Reply To Lean AFR question posted by beanz on May 09, 2012 at 04:43 PM
     
Message it is your ECU tune. A boost leak will allow air to escape so would actual result in a rich condition on boost and lean in vacuum.

Another possibility is that you have an exhaust leak which could throw off the readings slightly.

Third possibility (maybe most likely) is that you have some weak injectors. Based on your profile it looks like you are still using stock old style injectors, which are almost guaranteed to cause headaches.

'91 TT

     
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