I’m installing my new FRx and have the passenger side hose installed but there are no pictures on the instructions of where to route the drivers side hose. Do I have it routed correctly?

 

That's how I routed mine.

 

Perfect. Thanks!

 

Where it gets close to the HPOP hose I'd slide on a bit of rubber hose for protection. SS lines like that will eat right thru if it is in contact for too long.

Or crack open the wallet yet again and get the new design HPOP hoses with rubber coating. HPOP hoses fatigue and if it pops you're coasting to the side of the road.

 

I’ll put some rubber hose on it.

During the inaugural run once it was all complete the truck died randomly on me 5 separate times in a 3-4 mile run. Before the install my truck hadn’t died on me since around 2012 and I replaced the CPS and it’s been golden ever since. Any ideas what would be causing this after the FRx install?

 

What is your fuel pressure reading now and did you prime the fuel bowl before starting the truck?

 

Make sure the fuel pressure spring in on correctly and not bent.

 

Fuel pressure now is 69-71 at idle, about 68-69 steady cruising and drops to 62 at WOT.

I did prime the pump, 3 or 4 times before starting it.

I let it idle for about 15 min to see if it would die in the driveway and it wouldn’t, so I took the truck out again for a 6 mile run and it never died.

would air in the lines make it die?

 

Check the area around where you were working. Tin nut on IPR, IPR connector, CPS wire, ICP connector, wire sheathing for critical sensors, etc...

You may have a wire coating that was on the verge of going bad and you disturbed it causing an intermittent fault.

What about the 42 pin over the valve cover?

Air in the system would make it shudder a bit, but your fuel pressure seems good.

 

Did another run, this time about 20 miles and the truck never died. Tin nut looks good, all sensor connectors seem solid. I wiggled them around with truck idling and nothing happened. Weird, but seems to be gone.