2000 XJ fault code?????

My 2000 XJ 4x4 auto had a brake booster check valve replaced last week and now the check engine light is on and code #P1494 - "leak detect pump pressure switch" shows. Anyone can help with what I need to look at or replace????

Thanks in advance for any info.

check the connections to the leak detection pump and purge solenoid. these should be located on the passenger side of the engine compartment near the firewall. my wild guess is a vacuum leak to the purge valve somewhere in the area where the line connects to the intake manifold

Thanks for your help, you hit the nail on the head - was a vacuum elbow right at the intake manifold.

happy i could help