Not checked for code yet. Been hot as Satan's nut sak, I've unhooked the fuel line and cut it on and just checked that it shot a stream, but if the fuel pump is somehow acting up would it cause something like this ?

I did notice when it's running right its alot quieter of an exhaust tone, when acting up sounds alot deeper tone like if the packing blowed out of a glass pack. Lol

Before I put on the new pressure regulator I'll also get a new pump, ill find out what it is one day, just wish I had some help around here that knew about these.

As for wiring connections, I've called myself looking, wiggling wires and have only noticed some connection covers are dry and cracked, but the plug and wire under it looks OK. But I will start check these more, as with all those relays under the dash, like did they try and use as many as they could or what ?