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Home >> Mazda >> 2007 >> B4000 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0176: Flexible Fuel Sensor Malfunction >> Detection Condition

Detection Condition

WARNING: This page is about a different car, the 2003 Mazda B4000, 2003 Mazda B3000, and 2003 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

Flexible Fuel (FF) sensor signal to PCM fell out of minimum and maximum calibrated range. Flexible Fuel (FF) sensor is a capacitive device with a signal processing stage. FF sensor determines percentage of ethanol in fuel. As percentage of ethanol in fuel mixture increases, output frequency of sensor will increase. PCM uses this information to calculate the correct air/fuel ratio and spark advance for vehicle operation.

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