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High Fuel Rail Pressure

High all the time or just once in a while? The Edge unit lyes the rail pressure reading to p the performance so was it hooked up at the time it was tested?
 
Diesel Tech said:
High all the time or just once in a while? The Edge unit lyes the rail pressure reading to p the performance so was it hooked up at the time it was tested?
Click to expand...

I did have a P0193 Fuel Rail Pres Sensor Circ Hi Input code when Autozone scanned it a while back. They couldn't clear the codes though, so I don't know if it was old or still occuring.
 
I think what you would need to do is leave the EDge off for awhile and see if you get a code again. If not then it is the Edge that causes it. This is how the Edge and all other pressure boxs increase the fuel and maybe in your case it is on the edge of being too high. Start a test with no Edge box and codes cleared and see what happens as you maybe chancing a ghost problem.
 
Actually, the Juice doesn't alter pressure, it does pulse, BUT since the pressure signal goes in and comes out of the harness, it could get "eaten" by a bad connection etc. Like stated above leave it off and see if it clears up.
 
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