Lt1roady445
Newbie
Well I recently had this truck given to me by a family member. The truck has always had somewhat of a surge at low rpm. Never could find any vacuum leak. Had an ICM leave me stranded on the side of the road and replaced it. The truck would start and ever since this, the truck simply won't run well at all. Fuel pressure reads 18psi (seems kind of high). New ICM, new spark plugs and wires, distributor cap and rotor. Just need a little guidance by someone with more knowledge than me. I've guessed possibly the fuel pressure regulator? Taking spark plugs out tomorrow and seeing if they look rich at all. Can you have high fuel pressure and still not run rich?