TwinTurbo.NET: Nissan 300ZX forum - Note on error in FSM, Boost Sensor Testing
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Subject Note on error in FSM, Boost Sensor Testing
     
Posted by JMartz on February 27, 2017 at 1:03 PM
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Message The manual describes a testing procedure that yields incorrect values. In addition, the Z32 manual was never updated to the Z32 boost sensor, showing instead the Z31 unit, and where to connect on these.

The error is that the ambient pressure value of 2.2 volts as well as the -8 psi specification of 1.3 volts will not be reached if the sensor is powered and measured free, as indicated in the manual.

The sensor has to be connected to its load (the gauge) and back probed to come up with the manual's values. Be aware of this, and do not be mislead, if following the manual's directions, your sensor outputs 3.1 volts at ambient. It will if free.

     
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