• The EGRT Outlet sensor is a two (2) wire thermistor type sensor. • The EGRT outlet sensor’s internal thermistor forms a voltage divider with a pullup resistor inside the ECM. • The ECM monitors exhaust temperature from the EGRT outlet sensor signal to aid in controlling the EGR valve position… Read More »
• The FTS sensor is a two (2) wire thermistor sensor. • The FTS sensor’s internal thermistor forms a voltage divider with a pullup resistor inside the ECM. • The FTS sensor changes resistance when exposed to different temperatures. • When the temperature of the fuel decreases, the resistance of the thermistor increases and the… Read More »
• The EP sensor is a three (3) wire variable capacitance sensor. • The ECM supples a 5 volt reference signal which the EP sensor uses to produce a linear analog voltage that indicates pressure. • The EP measures exhuast back pressure so that the ECM can… Read More »
• The MAP sensor is a three (3) wire variable capacitance sensor. • The ECM uses the MAP sensor signal to assist in the calculation of EGR duty cycle, Fuel Delivery, and Throttle Body Position. • The ECM measures the MAP signal to determine intake manifold (boost) pressure. NOTE: Washing… Read More »
• The Mass Air Flow (MAF) sensor uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above ambient temperature as measured by a… Read More »
• The FRP sensor is a (3) wire variable capacitance sensor. • The ECM supplies a 5 volt reference signal (Vref) which the FRP sensor uses to produce a linear analog voltage that indicates pressure. • The primary function of the FRP sensor is to provide a feedback signal to the ECM indicating the pressure… Read More »
• The IAT2 sensor is a two (2) wire thermistor type sensor. • The IAT2 sensor changes resistance when exposed to different air temperature. • The primary function of the IAT2 sensor is to provide a feedback signal to the ECM indicating manifold air temperature. • The… Read More »
• The Intake Air Temperature1 (IAT1) sensor is a two wire thermistor sensor that is located inside the Mass Air Flow (MAF) sensor. • The IAT1 sensor’s internal thermistor forms a voltage divider with a pullup resistor inside the ECM. • The IAT1 sensor’s primary function is to measure intake air temperature to aid… Read More »
• The EOT sensor is a two (2) wire thermistor type sensor. • The EOT sensor’s internal thermistor forms a voltage divider with a pullup resistor inside the ECM. • The ECM monitors engine oil temperature via the EOT sensor signal to aid in controlling fuel rail pressure (FRP) and fan control.… Read More »
• The EOP (Engine Oil Pressure) is a switch that closes a circuit to ground after engine oil pressure reaches approximately 5-7psi. • This switch controls the oil pressure gauge on the instrument panel. When pressure is above 7psi the gauge will … Read More »