Abstract: A multiconnector block (19) for insertion between a junction block (4) and wire harness connectors (13), has a first array of terminals (24) to interconnect with the junction block (4), a second array of terminals (26) to interconnect with the connectors (13), and electrical connections among selective of the first and second arrays of terminals to provide required electrical circuitry.

Abstract: In a spark ignition internal combustion engine with power output controlled by a throttle, a throttle switch provides a wide open throttle signal and a knock sensor provides a knock level signal. A normal spark pulse train, corrected for intake manifold vacuum, engine speed and dwell angle, is fed through a shift register which delays each spark pulse by a fixed number of counts. A pulse train generator responsive to crankshaft rotation produces a crankshaft reference angle pulse each fixed number of degrees of crankshaft rotation; and these pulses are counted by the shift register to provide a normal spark timing.