Cp3 hooked up wrong

x MadMAX DIESEL

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Dec 30, 2008
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Lexington, Ky
[YOUTUBE]Kn66wvgm5N8[/YOUTUBE]FWIW with the engine running there is alot of pressure on the return, don't remember ever having trouble with that before. Figured that out when I tried to bottle test the other night and fuel was spraying past the bolt I had in the return line blocking it off....
 

sweetdiesel

That's better
Aug 6, 2006
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Ben the return is directly behind the high pressure line and the inlet is the horizontal to the left.

With a single Cp3 you would have a hard time starting the truck if you reversed lines
 

x MadMAX DIESEL

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Dec 30, 2008
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Lexington, Ky
Yeah the line I used is the return for the cp3 and Injectors. Either I know that's not the problem anymore.. I can't hold pressure on my hot street tune which iirc is 2700 us

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x MadMAX DIESEL

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Dec 30, 2008
7,535
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Lexington, Ky
If I unhook the regulator at idle It won't go full pressure. Around 19,000psi.... But give it alittle fuel and it will max out to about 29,000 :confused: