![]() big city gmod map download crestwood patch.This is one of the mass air flow sensors that can be tested with the least amount of effort. If the sensor is working you should see a voltage reading. Slowly move a screwdriver or wrench in front of the sensor portion of the CKP (the part facing the reluctor ring). Connect your multimeter leads to the sensor wiring. A small quantity of air entering the engine indicates deceleration or idle.Remove the sensor. The mass air flow (MAF) sensor is an air flow meter that measures the amount of air entering the engine.The powertrain control module ( PCM) uses the MAF sensor signal in order to provide the correct fuel delivery for a wide range of engine speeds and loads. As you accelerate the voltage should change on the signal wire.mia and me. That will have 5 volts as well and will vary in voltage from 0 to 5 volts depending on engine load. There will be a return or ground going back to the ECM as well. Okay, there should be a 5-volt reference voltage supplied by the ECM. ![]()
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