Report "I have a nissan sunny super saloon FB14 with GA15 engine. The car cannot start. When it seems as if its about to come to life it suddenly dies. I have redone the timing, changed the head gasket but no joy.The injectors are spitting fuel and there is a goog spark on all the plug cables. There is a shielded electic wire dangling on the intake manifold which seems to go nowhere.I suspect it should connect to the nock sensor but failed to locateone one on the block. How can I bring the motor to life"