Ignition Coil Secondary Signal Check
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 1997 BMW Z3, 1997 BMW M3, 1997 BMW 840Ci, 1997 BMW 740iL, and 1997 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.
- Connect engine analyzer and Adapter (127020) as described in IGNITION COIL PRIMARY SIGNAL CHECK. Remove ignition coil. Connect a spark plug wire (between coil and spark plug) to cylinder being tested. Connect inductive pick-up Blue lead, on lead to cylinder being tested. See Fig 2 .
- Produce stopped signal on oscilloscope by pressing "R" button on tester. Display of ignition signal on oscilloscope will be strongest when inductive clip and Black lead are connected to same cylinder. Display on oscilloscope may be disturbed by neighboring ignition leads (this is normal).
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
| Primary | Secondary | ||
|---|---|---|---|
| .8 (1) | Not Measurable | ||
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