2003 Elantra MAP
 

I am having issues with the car idling rough and when I push on the gas it hesitates to rev but when it does it runs fine. Whenever I put the car in drive or reverse the engine wants to stall. I had a misfire issue but have since replaced the coil pack, spark plugs/wires, intake manifold gasket and would like to replace the MAP.

I went through all the troubleshooting steps listed in alldata and the wiring all seems good but I have a question about the part itself. In the diagnosis it says that the sensor between pin 1 and 4 should read 30k ohms. The one off the vehicle was 15k ohms but whatever new MAP I buy reads 20-50M ohms (very high). I am very confused by this and am not sure what to do at this point.

Any suggestion would be helpful, thanks.