[gd123]

My 1995 K3500 6.5l runs great. After running it for awile i get code DTC 43. fuel temp high circuit (reading Low). what does this mean? the service engine soon light never comes on. I know the light works b/c i just fix dtc 78 problem.

 

[Goldsburg]

My 1995 K3500 6.5l runs great. After running it for awile i get code DTC 43. fuel temp high circuit (reading Low). what does this mean? the service engine soon light never comes on. I know the light works b/c i just fix dtc 78 problem.

http://www.dieselplace.com/forum/showthread.php?t=155613&highlight=DTC43

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[gd123]

well dtc 78 poped up agian. any chance dtc 43 and 78 are related?