What Should Map Sensor Read At Idle. I'm betting either a bad map sensor or the wrong part altogether. If the situation is off on ignition, then in that case, the map sensor output should be around 5 volts.
Map Sensor Reading At Idle Maps Model Online
What should the map sensor read a key on engine off, and at idle? Web with a map of high 30s, the vacuum is in low 60s at idle. Web map reading at idle i just got a scan tool that gives a live feed and noticed a few odd things. This is the opposite of what should really happen. With the ignition on, the map sensor output should be around 5 volts. This signal can be downloaded and used to correctly set up the lab scope or as reference signal. So my reading of.75 lbs is correct. Web check the working map sensor reading. Possible failures that can cause erroneous map sensor signals are: The op stated the map voltage was high at idle and went down as vacuum decreased.
At idle, the map sensor should read 1 to 2 volts. This indicates the map sensor is responding to changes in vacuum. With the ignition on, the map sensor output should be around 5 volts. If the reading is not within this range, the map sensor needs to be replaced. Web connect the other meter lead to ground. Web it shows right on the chart (top part), idle to be to the right side (high vacuum/low map voltage) and left to be wot (low vacuum/high map voltage). Start the vehicle and see if the map sensor takes a reading and changes when you press the throttle. The signals are measured under the following conditions: This is the opposite of what should really happen. O2s11 and o2s12 and o2s21 and o2s22. Start the engine and check the reading;
