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P0380
P0180
P1404
Pzdr.
P0180: Fuel Temperature Sensor A Circuit
What does this mean?
OBD Code P0180refers to
The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
Symptoms
Possible sumptoms of OBD code P0180
- Engine Light ON (or Service Engine Soon Warning Light)
Causes
Possible causes of OBD code P0180
- Harness or connectors (The sensor circuit is open or shorted) - Fuel tank temperature sensor may be faulty The Error code is generally activated on detection of the following conditions: - An excessively high or low voltage is sent to ECM. - Rationally incorrect voltage is sent to ECM, compared with
P0380 - What does this mean?
OBD Code P0380refers to
The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It's based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.
Symptoms
Possible sumptoms of OBD code P0380
- Engine Light ON (or Service Engine Soon Warning Light)
Causes
Possible causes of OBD code P0380
- Open or short in the optical sensor circuit - Optical sensor connector - Damaged optical sensor - Damaged PCM or ECM The Error code is generally activated on detection of the following conditions: Some high resolution pulses are missing from the optical sensor to the PCM
Possible Solutions
- If damage, repair optical sensor circuit - Replaced optical sensor - Replaced PCM or ECM