5.7 won't start

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spritee1

Junior Member
Joined
Nov 9, 2017
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Location
Texas
Ram Year
2005
Engine
5.7
had to replace a fuel pump that vwas working intermitant. tipped the bed up and did the replacement.
Now the truck won't start at all. It appears to fire but intermitant. Checked the fuel pressure and read 50 psi. Have only 2 codes 403, 463. the 403 is for the egr which has been there for quite some time. 463 is for the sending unit voltage to high. Do not think that is causing an issue.
Not sure where to go from here??
 

indept

Senior Member
Joined
Sep 10, 2017
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Location
South Jersey
Ram Year
2017
Engine
Hemi 5.7L
When you say sending unit voltage, is that the fuel pump or oil pressure sending unit. Either way did you measure what the "Too High" voltage is?
 

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