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Yes it is on passenger side on back side of the intake manifold
Yes, and it mounts on the alternator mounting braket, on the passenger side middle.
No, you might have a bad map sensor, disconnect and try starting the car. The map sensor is located above the power steering pump, attached to the fire wall. With one connector and a hose. F. Garay
you prob. have a bad map sensor. to test map sensor, put the + lead from a dc meter on the center wire that hooks up to the map sensor and the - lead to ground, you should get a reading between .5-4.5 volts any thing below or over map sensor is bad
You can not prevent a sensor from failing.
It does not have a MAF, it uses a MAP (manifold absolute pressure) sensor.
in the air box
The MAP sensor should be on the firewall just above the brake booster.
No vacuum change at the MAP sensor.
No such part on a 1993 Cummins
WWW.MOTORCRAFT.COM shows remanufactured AIR MASS SENSORS ( mass air flow sensors ) for the 3 available engines on your 1993 Ranger , there are no listings for a MAP sensor
It depends. If the sensor is working, just reset the computer. Otherwise you have to change the sensor.