2nd Gen Non-Engine/Transmission performance chip

[JessePayne]

I bought a used 01 2500 from a car lot and am wondering where to look to see if there has been a performance chip added. Thanks

 

[jjordan1]

Try down @ the map sensing plug. It is down to the rear of the fuel filter. That is where mine plugs in. Then to the dead plug under & in front of the fuel filter. Good Luck