Dodge Repair: Where is the MAP sensor on a 98 5.9 gas?, lbs torque, sensor position

Question
Hi Kevin,
I bought a used 98 van with a bad 5.9 and had a good used one installed. Now can't get the check-engine light to go out. A smog tester told me the codes indicated bad oxy sensors. I replace both with no effect - after reconnecting battery, light is out for about 20 miles, then comes back. I read that a bad MAP sensor might cause it, so I bought one. Can't find where it is on the intake manifold! If you think I should pursue this and replace it, can you tell me where it is? Or, do you think I'm barking up the wrong tree? Any other suggestions to get the light to go out?
thanks a lot,
Scott Scheffer

Answer
I cant tell u what might be the issue  to many things have been changed from original  like the engine  I don't know if u have the right one or same one that was in there to start. Second  I don't know what the codes are that are in the computer.

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
The MAP sensor is located on the front of the throttle body MAP Sensor Mounting Screws An L-shaped rubber fitting is used to connect the MAP sensor to throttle body MAP Sensor L-Shaped Rubber Fitting

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REMOVAL
Remove engine cover. Refer to Engine Cover in group 23, Body.
Remove air cleaner assembly.
Disconnect electrical connector.
Remove two MAP sensor mounting bolts (screws) MAP Sensor Mounting Screws
While removing MAP sensor, slide the vacuum rubber L-shaped fitting MAP Sensor L-Shaped Rubber Fitting from the throttle body.
Remove rubber L-shaped fitting from MAP sensor.
INSTALLATION
Install rubber L-shaped fitting to MAP sensor.
Position sensor to throttle body while guiding rubber fitting over throttle body vacuum nipple.
Install MAP sensor mounting bolts (screws) Tighten screws to 3 N·m (25 in. lbs.) torque.
Connect electrical connector.
Install air cleaner.
Install engine cover. Refer to Engine Cover in group 23, Body.