RyeThomas

OK so for those of you that know me I can screw anything up . Had my di-pricol electric fuel pressure gauge in the garage for about a year and decided rather that it collecting dust it should go in the truck. Well it worked for about 5 min at 12-15psi idle (with my Fass 150/150) then I turned the headlights on and it started rising???, then it quit working. Well I trouble shot and found the harness they sent had some pins that were falling out of a connection, so I cut them off and just wired them directly together. Well now it says that I have 3-5psi at idle. Only thing I can think is when it started having power issues it screwed the calibration up. Oh boy so long story short anyone have any ideas on how to get it reading right or calibrated? These things are not cheap and Im about to loose my mind .
On a side note my truck sure runs good when you romp it and the pressure drops to 0psi haha, guess Im saving fuel.

jdwest

I just had the same issue with a Dipricol EGT gauge. Give Dipricol a call and they will help you trouble shoot it further. Unfortuantely for me, I cooked my gauge. Did you check your gound wire? Sometimes that'll cause funky readings. It could even be the fuel pressure sending unit...