Needing help with engine. I put my homemade Gen3 HPOP on and now when I give it some throttle, computer goes to default of 725 psi and cel. Put new IPR, ICP sensor, and new pigtails on each. I found a thread that helped.

https://www.ford-trucks.com/forums/8...ode-p1280.html

I got connection to the PCM. But is the signal return wire suppose to be grounded?

 

Welcome to FTE. I'm not an electrical guru by any stretch of the imagination. I'm sure one the electrical gurus will jump in here to help out.

What is this, "...homemade Gen3 HPOP" you speak of? I'm sure the gang will want to have as much information about that as you can provide.

 

I put together Swamps Gen3 pump that they sell for $1600 and put together mine for a couple hundred.

 

My mods

96 F-350 RC 4x4 Hypermax Connecting Rods, PIS 300/200s Dyno Proven tunes, Garrett GT4294, Beans IDM, ARP head & main studs with girdle, half filled block, DI cam, ceramic coated bowls, anti-friction skirts, Gen3 over Honey Badger Jr, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, chrome moly pushrods, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.

 

Welcomw to FTE
WOW, I just read your mods looks like you have a nice setup

 

What is the code?

 

I know one is P1280. Low ICP

 

The dyno proven tunes and honey badger jr. is your problem.

 

How's that?

 

Glenn, I know the problem you had with your HBJ pump, but the 1280 code is a code for the electrical circuit of the ICP, not the pressure itself.

OP, have you tried pulling the chip and see what it does?

 

Took chip out and Gen3. I really don't think it's the chip. Takes me a while to build pressure to start though.

 

Hell yeah!!! Awesome! Now post some pics of that setup. I wanna see it. Hit the dyno yet?

 

Sorry, I was being a jerk! Just a bad experience with Jonathan at dyno proven. I'm with Nick, lets see some pictures! Sounds like you have a lot of 'over the top' mods, sounds very interesting! Good luck with your problem, I'm not much help.