High Fuel Pressure Reading

03mm · Jan 11, 2015

Quick back story truck has been sitting in the garage for about two weeks or so due to vacation. Weather has been 30s and below. Truck started and drives fine but when I stopped at a red light fuel pressure started reading 100psi and is staying there. Truck still drives fine at 100psi. Has a ADII (I am planing on getting rid of) and gauge is a Edge CS. I am at work so I havent got to troubleshoot just looking for where I should start or possible causes.

what a mess · Jan 11, 2015

i think 100 spi will blow up injectors u shouldnt run it like that

03mm · Jan 11, 2015

Once it hit 100 I went back home which wasnt far.

HOOV3R · Jan 11, 2015

Try putting a manual gauge on it. Same thing happened with my CTS when my sender failed.

webb06 · Jan 11, 2015

I'd definitely verify it's actually that high with a manual gauge before I do anything else.

03mm · Jan 11, 2015

Thanks for the advice guys. I am going to look for a manual tester and see what its reading then if its the sender buy a manual gauge. I hope that is the issue.

04cr450 · Jan 15, 2015

any updates? did the sender end up being the culprit?

DEEZUZ · Jan 15, 2015

It'll be the sender. I just lost one also and verified with a manual gauge it's good

03mm · Jan 29, 2015

Sorry I havent been on in awhile. But I havent been able to work on the truck due to work and getting ready for my new baby. Hopefully this weekend I can go out and get a gauge to test it. Any recommendation on which gauge I should get.

05wh250 · Jan 29, 2015

Just FYi, I ran a ad2 and it would go to 90+ after a few days of cold. Talked to airdog was told to reset the pressure, which I did several times before I took it off and put it back in the box. This was with an auto meter electric sensor gauge which is still on the truck and working just fine. Never really figured it out, just wanted that junk off my truck.

03mm · Jan 29, 2015

Thanks for the advice.

05wh250 · Jan 30, 2015

You should be able to get a fuel pressure tester from the parts store.

If your set on getting a stand alone gauge, I like the auto meter's, just personal preference.

04cr450 · Jan 31, 2015

i have an autometer, its the way to go quality wise. fuel pressure is spot on weather its cold or hot. think i paid $208 for it. the kit comes with the sender and all for the install. huge upgrade from the junk glowshift fuel pressure gauge i had.