Hi folks, new the forum and looking for help. There's a ton of info here but I can't seem to find the answer to my question searching old threads.

I was wondering how involved changing the fuel rail pressure sensor is? I'm just worried about leaks, residual pressure in the system, what's the torque spec. for this little dude it any, will air get in the system, things like that. Any info would be comforting.

Thanks

It's pretty easy. But you do need a crowfoot to fit it for proper torque. Don't worry about air. Just keep the area clean while installing it. If it is properly torqued you will not have any leaks. No residual pressure in the system.

Thanks Jake, much appreciated!

Now if I could only find it.

TMC what year is your truck, what are we working with? Why are you changing the fuel rail senor? I'm interested because I've had this P1093 code for over 2 years and the dealer hasn't fixed it yet and was wandering if this could be the problem?

Rich

If your fuel rail pressure senser is bad, It will rev up and down a few times,then it will not do anything, At least that's what mine did:eek: Just out of the blue no warning, other than the up and down rev..

If your fuel rail pressure senser is bad, It will rev up and down a few times,then it will not do anything, At least that's what mine did:eek: Just out of the blue no warning, other than the up and down rev..

And or leaking fuel.
It is on the pass side valley. If you follow the short hose forward from your filter it will take you right to it.

TMC: I went through this when I welded my FRP release valve shut. I had an unfortunate mishap with the pressure sensor, had to get a new one. $245 for a new sensor which they say once is taken out of the junction block, should be replaced because of the soft iron it is made of could not re-seal and leak. You can get the whole sensor, junction block and pressure release valve for $200....yeah, stupid, I know. Now this is most likely not your problem, for I too have the 1093 problem and when I bought the whole new junction block new and installed it...nothing changed. As for where it is located...in the valley of the block, to the driver's side and a little forward of the cast turbo intake pipe (which is better to remove to get to the block...and a real pain). You will see the black and stainless looking fitting in the back with the wires (this being the sensor) and the pressure release valve on the passenger side of this block. Shaped almost like a standard puzzle piece. It will probably take you a couple of hours at best. Hope this helps.

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Sorry the drawing didn't come out right

Chipper, you're thinking of the FICM, Fuel Injector Control Module. And TMC, for a little more definite measurement, it is right in between the turbo intake pipe and about 1.5" from the driver side common rail.

I guys,

My truck is a 2002. I took the truck in because it was surging at idle but it ran fine otherwise. They siad the problem was a faulty sensor. They didn't have the sensor in stock and had to order it which was going to take a week. I figured I take it back in when they got it but the surging hasn't been bad enough for me to go through the hassle of leaving the truck at the dealer for a day. When they ordered the sensor I had to pay for it so when it came in I didn't want to leave it at the dealer so my wife picked it up. Its been on the work bench since June 15th.