Need some help with 2000 4.0 XJ stalling out. Engine was running great. Put in reverse and engine stalled out. Would not restart (smelled flooded). Finally would start up after cranking for 20 sec or so. Idled real bad and wanted to stall when giving any gas. I let it idle for 5 min and drove it around block. Eventually it began to run normal again with no issues. This is the second time this has happened in the past 3 months. I was thinking CPS or fuel pump starting to go out. Anyone that has had similar issues I would appreciate any input. Thanks