I'm on a trip with my 5er and driving in hoter temps than usual, 100 +- 5. i had my pyro moved pre-turbo just before my trip. I am seeing much higher exh temps then i did before and i am setting off the alarm on my BD- X monitor, but i think i had it too low. i did hit 1200* breifly a few times but slowed or changed gears to cool it down. a couple times going upgrade it just seemed to quit, like someone cut off the fuel. i would drop a gear and it would rev up again. does the alarm have a fuel cut off on it? this has happened about five times. i checked for codes and got 1693. i changed the fuel filter and this seemed to help for a bit. one time pulling in to a rest area it cut out a few times and jerked a little. the other thing that bothers me is my fuel pressure is normaly 24 at idle, 19 wot. my fuel pressre has been unstable going from normal to 8 psi. it still idles at 22- 24 but will drop to 8-10 while pulling a hill. i do seem to be getting some different engine noise, not bad, just not right. My fuel punp is a BD on frame in front of tank and sounds like its doing its job. Is this the injection pump? I'm about 150 miles from home do you think i can nurse it home with out doing damage?