2012 Nissan Xterra Repair Manual - Emission Control System (Section EC)

2012 Nissan Xterra Repair Manual - Emission Control System (Section EC)
Posted on 24 May, 2015
Model: 2012 Nissan Xterra
Pages: 495


File size: 7 MB

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Manual Description
Heated oxygen sensor 2 is located downstream of the three way catalyst (manifold). Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is then computed in terms of injection pulse duration” to automatically compensate for the difference between the two ratios.

The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an increase in fuel volume if it is lean. F The six fuel injectors will then receive the signals two times for each engine cycle. Computing this information, ignition signals are transmitted to the power transistor.

The basic ignition timing is programmed within the anti-knocking zone, if recommended fuel is used under dry conditions. Each control unit transmits/receives data but selectively reads required data only. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.


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2012 Nissan Xterra Repair Manual - Emission Control System (Section EC) Image


General
Year 2012
Make Nissan
Model Xterra
Language English
Pages 495
Filetype PDF (Download)
File size 7 MB

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