94 stalls after sitting for 30 min.
 

If I start the truck in the morning it will run all day no problem, this after it sits all night. If I shut the truck off and get lunch, maybe half hour to up to 5 hours truck will start but will be missing and yesterday it finally stalled out and started right back up after I shut off and started again. any ideas, the lift pump, oil switch are all ok and 12volt is confirmed at pump at least it was a couple weeks ago. Any suggestions.:argh:

how did you test the OPS and LP also where is the PMD mounted

I am going to check the LP this afternoon again and the OPS is the OPtic sensor I assume. My PMD is mounted on the front bumper ans is brand new So in theaory it should not be the issue. Heath has a filter harness for the Optic sensor, I noticed the other day when getting the numbers off the IP for a prom that the harness filter was really hot. I'm also gonna pop in a new fuel filter today to be on the safe side. other than that the truck is running great, but every so often has a slight miss. I'll get it figured out.:humm:

OPS ( Oil Pressure Switch)