Short Term Energy Trim (STFT)- The correction factor getting utilized in closed loop by the PCM to keep a balanced fuel mixture.If the LTFT is usually increased than 10 either method, it may suggest a problem. Beneficial LTFT quantities indicate the PCM will be adding more gas to compensate for a low fat fuel situation.īad LTFT amounts imply the PCM is certainly delivering much less fuel to make up for a wealthy fuel problem.
GM EXTENDED PID LIST TRANS TEMP PLUS
LTFT should typically become within plus ór minus five. Long Term Gas Trim (LTFT)- The modification factor (percentage) getting used by the fuel control system in both open and shut loop settings of operation. Stress- Pressure in the consumption manifold derived from a Manifold Absolute Stress (Chart) sensor.Ignition Time Progress- Degrees of ignition timing (spark) advance for #1 cylinder (not including mechanised advance).Gas Rail Pressure- Stress in the fuel rail when the reading through can be referenced to atmosphere (gauge pressure).Motor RPM- The present engine rate in revolutions per minute (RPM).If the real heat and shown temperature do not fit, it would inform you the coolant sensor is not reading properly. You can make use of an infrared thermometer or various other thermometer to measure the heat range of the cooIant at the thérmostat electric outlet. This value should end up being likened to the actual coolant heat range to notice if they match up. Engine Coolant Temperature- Engine coolant temperature as learn by the engine coolant temp sensor.Reaches 100% at wide open up throttle at ány altitude ór RPM for bóth naturally aspirated and increased motors. Usually above 0% at nonproductive and less than 100% at complete throttle.Ĭalculated Fill Value- Indicates a portion of top available torque. Absolute Throttle Placement- The complete throttle placement (not really the relatives or discovered) throttle position.Air Flow Price From MAF- The air flow price as measured by the bulk air circulation sensor.Test outcomes are sized by the PCM and compared against preprogrammed move/fail ideals in teh PCM'h memory.
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