I think I found my mystery problem.



I am running an SX FPR with Keith's rails in parallel. I am running -8 line to and from the rails and also for the return line from the FPR. So I had to buy new fittings for my FPR since the ones that came with it were -10 and -6.....not my size. So I installed some Aeroquip -10 to -8 Flare fittings and they hit the inside of the FPR when they are tightened which allows 0 fuel to flow into the regulator....can I simply shave the bevel off of these fittings or do I have to buy new fittings. If I have to get new fittings, where can I get fittings that will fit the SX FPR. The -10 ones I got were chamfered from the factory...those would be nice to get, but I can't find them anywhere.



Any help would be great. I am planning on shaving my two fittings down tomorrow.



Thanks,

Scott

dont shave them. you need an O-ring to not hit. the 37* edge will hit if there is no Oring

I am using an O-ring.

Scott:



I had the same problem, I just cut off the tapered end of the fittings past the threads and used an o-ring to seal it.



Matt

That is what I was going to do....have you had any ill effects?

None that I can tell, probably a good idea to replace them with the boss type fittings eventually.

I shaved them down and they work fine. I can prime the system now and have 45psi within seconds. I will buy some boss fitting for it, but these will do for now.



But I broke my coolant temperature sensor that connects to the water pump housing, the one that the green clip goes to. I know this goes to my ECU which will give me a Water Temp reading....so my car was idling some without knowing temps...I just left the fans on the entire time. I was trying to get my cooling system burped some, since the new motor has alot of air in it, but I don't know if the thermostat ever opened to push air through the system so I could bleed it. I did not want to risk the motor, so I shut it off, and I am going to try and find a new sensor tomorrow for it.



I did try and drive my car around my neighberhood block and it stumbled and **** all the time....my fuel injector duty cycled was up to 34% at 2600rpm....so I think I am pumping way too much fuel and causing it to stumble when I press the gas much above 2000rpm. Or could it be that sensor being broke, putting my car in some sort of limp mode?



Thanks,

Scott

The car has to know what the temp is so it knows how much fuel to inject. It probably defaults to cold if it doesn't see the sensor, meaning you are running WAY rich.



Get a new sensor...