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Home >> Land Rover >> 1995 >> Defender 90 (LD) V8-3.9L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Testing and Inspection >> Component Tests and General Diagnostics >> Constant Energy Ignition System >> Test 5
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Test 5

TEST 5: COIL H.T. SPARKING





- Remove existing coil/distributor H.T. lead and fit test H.T. lead to coil tower. Using suitable insulated pliers, hold free end about 6 mm (0.25 in) from the engine block and crank the engine. There should be good H.T. sparking.
- If weak or no sparking, fit new coil, repeat test.
- H.T. sparking good, repeat test with original H.T. lead. If sparking is good, carry out Test 6. Test 6
- If weak or no sparking, fit new H.T. lead, if engine will not start, carry out Test 6. Test 6

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