FICM testing procedure
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
The FICM voltage should NEVER fall below 45V. Your FICM still isn't up to snuff. Have you had a complete charging system test? Batteries load tested, alternator output, etc?
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
Not sure what it means!
Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
P123;
Looks like it has something to do with the fuel pump. I have been leaving the key on for a cople of minutes before starting and it will start right up. Before I was having to mash the throttle about half way. I am going to clear the code again and see if it re-apears. Thanks.
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
Looks like it has something to do with the fuel pump. I have been leaving the key on for a cople of minutes before starting and it will start right up. Before I was having to mash the throttle about half way. I am going to clear the code again and see if it re-apears. Thanks.
You do need to leave the key on until the glowplug indicator in the instument cluster goes out before you start.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Looks like it has something to do with the fuel pump. I have been leaving the key on for a cople of minutes before starting and it will start right up. Before I was having to mash the throttle about half way. I am going to clear the code again and see if it re-apears. Thanks.
Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
The code actually read "P123;"
I looked in my Super Chip code book and P1230 thru P1239 deals with the fuel pump.
I tried to start it normally this morning and it fired right up then died. I turned the key back on and waited a minute before trying to start and it fired up but I had to work the accelerator pedal a bit before it cleared up and idled fine. It seems like it is not getting enough fuel for it to start and idle normal. Any ideas would be appreciated. I don't want to start replacing unnecessary parts.
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
The code actually read "P123;"
I looked in my Super Chip code book and P1230 thru P1239 deals with the fuel pump.
I tried to start it normally this morning and it fired right up then died. I turned the key back on and waited a minute before trying to start and it fired up but I had to work the accelerator pedal a bit before it cleared up and idled fine. It seems like it is not getting enough fuel for it to start and idle normal. Any ideas would be appreciated. I don't want to start replacing unnecessary parts.
I looked in my Super Chip code book and P1230 thru P1239 deals with the fuel pump.
I tried to start it normally this morning and it fired right up then died. I turned the key back on and waited a minute before trying to start and it fired up but I had to work the accelerator pedal a bit before it cleared up and idled fine. It seems like it is not getting enough fuel for it to start and idle normal. Any ideas would be appreciated. I don't want to start replacing unnecessary parts.
I think you either read the code wrong, or your reader does not properly read diesel codes.
All codes need to start with a letter, followed by 4 alphanumeric digits.
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
The code actually read "P123;"
I looked in my Super Chip code book and P1230 thru P1239 deals with the fuel pump.
I tried to start it normally this morning and it fired right up then died. I turned the key back on and waited a minute before trying to start and it fired up but I had to work the accelerator pedal a bit before it cleared up and idled fine. It seems like it is not getting enough fuel for it to start and idle normal. Any ideas would be appreciated. I don't want to start replacing unnecessary parts.
I looked in my Super Chip code book and P1230 thru P1239 deals with the fuel pump.
I tried to start it normally this morning and it fired right up then died. I turned the key back on and waited a minute before trying to start and it fired up but I had to work the accelerator pedal a bit before it cleared up and idled fine. It seems like it is not getting enough fuel for it to start and idle normal. Any ideas would be appreciated. I don't want to start replacing unnecessary parts.
As stated above there is no fuel pressure sensor so you have to install the sensor in filter body. You will need an adaptor such as this DieselManor - Accessories and a 45 deg elbow.
<TABLE style="BORDER-COLLAPSE: collapse" borderColor=#111111 height=1 cellSpacing=0 cellPadding=0 width="99%" border=0><TBODY><TR><TD vAlign=top align=middle width="16%" height=28></TD><TD vAlign=top align=left width="81%" height=28>ISSPRO Metric Adapter
M12x1.5 (male) x 1/8" NPT (female) <TABLE id=table23 width=504 bgColor=#ededef border=0><TBODY><TR><TD vAlign=top width=273>Part #: R7962 Price $6.95</TD></TR></TBODY></TABLE>
</TD></TR></TBODY></TABLE>
Here is a link to a thread that covers some of the options, some people like to use a short hose to get the sensor away from the engine.
https://www.ford-trucks.com/forums/1...-question.html
IIRC the minimum pressure you need is 45 psi under full load. There is a blue spring kit that you can install that will help raise fuel pump pressure. Running with low fuel pressure will damage your injectors which can be very expensive ($2-3k). The gauge is very useful!
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Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
Installing a fuel pressure gauge would be useful, Amazon has one that is not too expensive. Amazon.com: Tinted 7 Color 100psi Fuel Pressure Gauge: Automotive
As stated above there is no fuel pressure sensor so you have to install the sensor in filter body. You will need an adaptor such as this DieselManor - Accessories and a 45 deg elbow.
<TABLE style="BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 borderColor=#111111 cellPadding=0 width="99%" height=1><TBODY><TR><TD height=28 vAlign=top width="16%" align=center></TD><TD height=28 vAlign=top width="81%" align=left>ISSPRO Metric Adapter
M12x1.5 (male) x 1/8" NPT (female) <TABLE id=table23 border=0 width=504 bgColor=#ededef><TBODY><TR><TD vAlign=top width=273>Part #: R7962 Price $6.95</TD></TR></TBODY></TABLE>
</TD></TR></TBODY></TABLE>
Here is a link to a thread that covers some of the options, some people like to use a short hose to get the sensor away from the engine.
https://www.ford-trucks.com/forums/1...-question.html
IIRC the minimum pressure you need is 45 psi under full load. There is a blue spring kit that you can install that will help raise fuel pump pressure. Running with low fuel pressure will damage your injectors which can be very expensive ($2-3k). The gauge is very useful!
As stated above there is no fuel pressure sensor so you have to install the sensor in filter body. You will need an adaptor such as this DieselManor - Accessories and a 45 deg elbow.
<TABLE style="BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 borderColor=#111111 cellPadding=0 width="99%" height=1><TBODY><TR><TD height=28 vAlign=top width="16%" align=center></TD><TD height=28 vAlign=top width="81%" align=left>ISSPRO Metric Adapter
M12x1.5 (male) x 1/8" NPT (female) <TABLE id=table23 border=0 width=504 bgColor=#ededef><TBODY><TR><TD vAlign=top width=273>Part #: R7962 Price $6.95</TD></TR></TBODY></TABLE>
</TD></TR></TBODY></TABLE>
Here is a link to a thread that covers some of the options, some people like to use a short hose to get the sensor away from the engine.
https://www.ford-trucks.com/forums/1...-question.html
IIRC the minimum pressure you need is 45 psi under full load. There is a blue spring kit that you can install that will help raise fuel pump pressure. Running with low fuel pressure will damage your injectors which can be very expensive ($2-3k). The gauge is very useful!
Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
Those codes are for gassers. Not valid for diesel. The 6.0 doesn't have a fuel pressure sensor, so it has no way of knowing if your fuel pump has a problem.
I think you either read the code wrong, or your reader does not properly read diesel codes.
All codes need to start with a letter, followed by 4 alphanumeric digits.
I think you either read the code wrong, or your reader does not properly read diesel codes.
All codes need to start with a letter, followed by 4 alphanumeric digits.
The code has me stumped as well. Codes I have pulled in the past were always as you mentioned above. This is the only time I have ever seen a letter, 3 alphanumeric digits, and a semi-colon (P-123
. I cleared the code and will check it again in a couple of days. I am thinking about changing out the fuel filters to see if that makes a difference. Thanks for your help.
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
www.partsguyed.com
It's best to have a fuel pressure gauge in place before you start changing fuel pressure because over pressure can blow out injector "o" rings!
Do a quick search for Blue Spring on the forum and you will find lots of threads.
Some people have placed a BB pellet behind the old spring, but without a pressure gauge you don't know what the new pressure is.
Take a look in the Tech Folder
https://www.ford-trucks.com/forums/9...-pressure.html
Minimum at wide open throttle - 45 psi
Maximum - 75 psi
Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
Here's one option for a Ford kit, you can also search eBay, you may find a better offer.
www.partsguyed.com
It's best to have a fuel pressure gauge in place before you start changing fuel pressure because over pressure can blow out injector "o" rings!
Do a quick search for Blue Spring on the forum and you will find lots of threads.
Some people have placed a BB pellet behind the old spring, but without a pressure gauge you don't know what the new pressure is.
Take a look in the Tech Folder
https://www.ford-trucks.com/forums/9...-pressure.html
Minimum at wide open throttle - 45 psi
Maximum - 75 psi
www.partsguyed.com
It's best to have a fuel pressure gauge in place before you start changing fuel pressure because over pressure can blow out injector "o" rings!
Do a quick search for Blue Spring on the forum and you will find lots of threads.
Some people have placed a BB pellet behind the old spring, but without a pressure gauge you don't know what the new pressure is.
Take a look in the Tech Folder
https://www.ford-trucks.com/forums/9...-pressure.html
Minimum at wide open throttle - 45 psi
Maximum - 75 psi
Senior User
Joined: Jan 2005
Posts: 120
Likes: 0
What thread are you referring to? I check this one and nothing came up.
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
See post #6 in this thread for the IH part number.