Understanding MAF Sensor Readings Blazer Forum Chevy Blazer Forums
What Should Map Sensor Read At Idle. With the ignition on, the map sensor output should be around 5 volts. Then, it translates this pressure into a voltage signal that the sensor feeds to the power.
Understanding MAF Sensor Readings Blazer Forum Chevy Blazer Forums
At idle, the map sensor should read 1 to 2 volts. Web map sensor reading 20360 views 12 replies 4 participants last post by mstoaks , feb 7, 2012 c cumminsguy101 discussion starter · feb 7, 2012 i have a 2000 dodge ram 2500 2wd auto. Web with a map of high 30s, the vacuum is in low 60s at idle. Web basically, a map sensor reads the amount of air pressure in relation to vacuum inside the intake manifold, either directly or using a vacuum hose. Web measuring figure 3 shows a waveform of a map sensor of a car with running engine. Web connect the other meter lead to ground. With the ignition on, the map sensor output should be around 5 volts. Start the engine and check the reading; If the reading is not within this range, the map sensor needs to be replaced. This signal can be downloaded and used to correctly set up the lab scope or as reference signal.
At the initial stage, you can start with the engine and go through reading, on an estimation reading should be 1 to 2 volts. Web measuring figure 3 shows a waveform of a map sensor of a car with running engine. Depending on your maf sensor, your voltage reading should be between 0.60 to 0.80 volts at idle. I'm betting either a bad map sensor or the wrong part altogether. Graph the map sensor reading. So my reading of.75 lbs is correct. At the initial stage, you can start with the engine and go through reading, on an estimation reading should be 1 to 2 volts. Web basically, a map sensor reads the amount of air pressure in relation to vacuum inside the intake manifold, either directly or using a vacuum hose. The signals are measured under the following conditions: Key on, cranking, idle, 2000 rpm, 3000 rpm and back to idle. This is the opposite of what should really happen.
