System Spark Test

If starter turns, but engine will not start or it fails to develop sufficient power, hold distributor end of coil wire about 3/8" (10 mm) from engine block and crank engine. See Fig 2.

Fig 1: Wiring Diagram of Typical Bosch Electronic Ignition System
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Fig 2: Coil Wire Hookup for Making System Spark Test
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If spark jumps gap, check distributor cap, rotor, cables and spark plugs. Be sure ignition timing and fuel system are OK. If no sparks occur, perform the following tests