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Home >> Suzuki >> 2006 >> Reno Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Performance - DTC P0401 - P0507 >> DTC P0451: Fuel Tank Pressure (FTP) Sensor Performance >> Circuit Description

Circuit Description

The control module monitors the Fuel Tank Pressure (FTP) sensor signal in order to detect vacuum decay and excess vacuum during the Evaporative (EVAP) emission diagnostic test. The control module supplies a 5 volt reference and a low reference circuit to the FTP sensor. If the FTP sensor signal voltage is not within a calibrated value range during a cold engine start, this DTC sets.

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