obd code p1494

does anyone know this could be caused by? changed the purge solenoid

This looks like some good info.

http://en.allexperts.com/q/Chrysler-Repair-807/2000-Jeep-Grand-Cherokee.htm

i have a 02 jeep liberty that has a obd code of p1494. i have replaced a hose that was cracked and fixed code p0442. after fixing this code came up. i was recommended to replace the purge control solenoid. but this did not get rid of the code. what else could it be?

The writer in the above shortcut refers to a leak detection pump and potential problems with it...setting off the trouble code. That's what I would look for first.