Fuel Pressure when starting?
07-05-2005, 10:20 PM
#1
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Location: Bend, OR
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Fuel Pressure when starting?
Are pressures as they should be?
When I turn on the key the FP goes up to 22 (lp and pusher pump wired in parallel), then it drops back to zero until I start the truck. Idling FP is 20, at 65 mph it's 16.
It's that rise and fall upon turning on the key I don't understand.
Jay
When I turn on the key the FP goes up to 22 (lp and pusher pump wired in parallel), then it drops back to zero until I start the truck. Idling FP is 20, at 65 mph it's 16.
It's that rise and fall upon turning on the key I don't understand.
Jay
07-05-2005, 10:30 PM
#2
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Thats normal
When you first cycle the key the LP runs for a few seconds then shuts down to drop the pressure for starting ( I guess they feel its better fot the VP to start with out alot of pressure) once started the LP fires up again.
Alls good
When you first cycle the key the LP runs for a few seconds then shuts down to drop the pressure for starting ( I guess they feel its better fot the VP to start with out alot of pressure) once started the LP fires up again.
Alls good
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