The fuel state sensing device has a fuel pressure sensor for sensing a bulk modulus of the fuel existing in a fuel passage extending from {HEAD ~ a discharge port} of {TAIL ~ the fuel pump} to the injection hole 
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The fuel state sensing device has a fuel pressure sensor for sensing a bulk modulus of the fuel existing in a fuel passage extending from { HEAD ~ a discharge port } of { TAIL ~ the fuel pump } to the injection hole
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH