1990 Suburban DOA
Have no fuel spray into the TBI, no electric to the fuel relay switch on fire wall, no electric to the fuel pump. Have replaced fuel pump, filter, and fuel relay switch. Can not locate fuel pressure switch. Does the starter and the inline fuse wire run all realy switches, and if so what is the fuse rated for and how do you determine electric pulse? Does anyone know where the fuel pressure switch is located?
check ecm fuse,is in fusebox,could be blown.
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