DTC p0678/p0676/p0674/p0672
#1
DTC p0678/p0676/p0674/p0672
I have an 01' excursion with a 7.3L. its stock. These codes were stored. I looked them up and all it says is glo plug circuit for cylinders 2,4,6,8.
I am assuming the bank is fed from the same place. I do not have a wiring diagram for glo plug circuit so I dont know if its fed from a relay fuse or fusable link. Any one else have this happen? Any suggestion on were to look first? Also it says high voltage at 110v dc so could it be a transfomer?
I am assuming the bank is fed from the same place. I do not have a wiring diagram for glo plug circuit so I dont know if its fed from a relay fuse or fusable link. Any one else have this happen? Any suggestion on were to look first? Also it says high voltage at 110v dc so could it be a transfomer?
#3
Join Date: Jun 2006
Location: White Mnt's,New Hampshire
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you can ohm out the GP at the VC...if its a bad wire or GP you will beable to tell..if there good you will need to trace the wires back..i think the X does not have a GP relay..its done though the PCM...here is the pin out and specs..
Pin Out
G G I I C I I G G
G=Glow Plug +
I = Injector +
C= Injector Common
***The injectors fire with a 115VDC signal from the IDM do not pierce to wires to test.***
Ohm between "I" and "C" to test the injectors, should be less than 5.0 Ohms
To check glow plugs Ohm between "G" and battery ground should be between 0.1 and 2.0 Ohms
Pin Out
G G I I C I I G G
G=Glow Plug +
I = Injector +
C= Injector Common
***The injectors fire with a 115VDC signal from the IDM do not pierce to wires to test.***
Ohm between "I" and "C" to test the injectors, should be less than 5.0 Ohms
To check glow plugs Ohm between "G" and battery ground should be between 0.1 and 2.0 Ohms
#6
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EBSCOhost - world?s foremost premium research database service
you can find wire diagram in here..type "Library" for user name and password
you can find wire diagram in here..type "Library" for user name and password
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heartnurse73
1994.5 - 1997 7.3L Power Stroke Diesel
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06-05-2012 09:04 PM