TwinTurbo.NET: Nissan 300ZX forum - idle AFR, different 02 sensor readings left-right
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Subject idle AFR, different 02 sensor readings left-right
     
Posted by Vanos on November 10, 2011 at 4:12 AM
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Message I want to have stoich when idling but the 02 sensors seem to fight me.

Does it matter if one sensor is reading across a greater range?
This is at 2500rpm, 14.7 AFR, +2-3% fuel

Dead 02 feedback at idle. Why is the ECU adding 10% fuel??
This is att 870rpm 13.5 AFR, +9-10% fuel

Any ideas?

     
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