P0628 with AirDog?
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3rd Gear
Joined: Aug 2024
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P0628 with AirDog?
Truck threw a P0628 on startup today. Fuel pump A control circuit low. Truck had an AirDog on it and runs great idle to cruising. Cleared the code and drove for awhile without it coming back on. Anyone else had this issue?
poking around here and google I didn’t see anything, only came across commonrail Cummins threads but not many resolutions in them.
poking around here and google I didn’t see anything, only came across commonrail Cummins threads but not many resolutions in them.
Hotshot
Joined: Jul 2013
Posts: 14,263
Likes: 2,185
You said it was upon start up
what Are your thoughts on startup discipline?
do you start it like a gas truck….
or..do you have some method to ensure fuel is at pressure before starting….
i do the start on the second ding sound…I have measured my startup fuel pressure and at the second ding sound I’m at psi. Before the second ding sound I am not at psi and at the third ding sound I’m no longer at psi and have to repeat the start process.
awhile back there was a how to start your diesel with success video link floating around and basically the theme of the video was to not start your diesel the way you would start a gas truck.
what Are your thoughts on startup discipline?
do you start it like a gas truck….
or..do you have some method to ensure fuel is at pressure before starting….
i do the start on the second ding sound…I have measured my startup fuel pressure and at the second ding sound I’m at psi. Before the second ding sound I am not at psi and at the third ding sound I’m no longer at psi and have to repeat the start process.
awhile back there was a how to start your diesel with success video link floating around and basically the theme of the video was to not start your diesel the way you would start a gas truck.
Thread Starter
|
3rd Gear
Joined: Aug 2024
Posts: 3
Likes: 0
You said it was upon start up
what Are your thoughts on startup discipline?
do you start it like a gas truck….
or..do you have some method to ensure fuel is at pressure before starting….
i do the start on the second ding sound…I have measured my startup fuel pressure and at the second ding sound I’m at psi. Before the second ding sound I am not at psi and at the third ding sound I’m no longer at psi and have to repeat the start process.
awhile back there was a how to start your diesel with success video link floating around and basically the theme of the video was to not start your diesel the way you would start a gas truck.
what Are your thoughts on startup discipline?
do you start it like a gas truck….
or..do you have some method to ensure fuel is at pressure before starting….
i do the start on the second ding sound…I have measured my startup fuel pressure and at the second ding sound I’m at psi. Before the second ding sound I am not at psi and at the third ding sound I’m no longer at psi and have to repeat the start process.
awhile back there was a how to start your diesel with success video link floating around and basically the theme of the video was to not start your diesel the way you would start a gas truck.
Hotshot
Joined: Jul 2013
Posts: 14,263
Likes: 2,185
at 3 seconds the stick pumps stops and the psi bleeds down…so…how is the air dog connected…
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3rd Gear
Joined: Aug 2024
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Uses the stock pump wiring and hoses. If the key is on the pump continually runs, can hear it out the window
Hotshot
Joined: Jul 2013
Posts: 14,263
Likes: 2,185
Interesting
on my 2019, the stock wiring shuts the pump off after 20 seconds of key on. So at 30 seconds the psi drops and I have to recycle the ignition on button to start it. If I don’t…sometimes I get low fuel psi codes.
on my 2019, the stock wiring shuts the pump off after 20 seconds of key on. So at 30 seconds the psi drops and I have to recycle the ignition on button to start it. If I don’t…sometimes I get low fuel psi codes.
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