It does not have a maf.
Its located in the exhaust pipe on rear of engine.
21 is for the oxygen sensor reading staying at center.
on a 3.0 it's located under the dist. cap/
You will find the outside air temperature sensor under the battery tray
No.
It can cause it to only have second and reverse gears.
The crankshaft position sensor on a 1998 3.0 dodge caravan is located on the top of the bellhousing towards the firewall.
There isn't a vacuum line going to the regulator on a 1998 Dodge Caravan.
DOT 3
Map sensor fault
Replace the cam sensor
It is the two wire sensor near the thermostat housing.