VISUAL INSPECTION
Visually inspect all electrical wiring, looking for chafed, stretched, cut or pinched wiring. Ensure electrical connectors fit tightly and are not corroded. Ensure vacuum hoses are properly routed and are not pinched or cut. See the VACUUM DIAGRAMS article to verify routing and connections (if necessary). Inspect air induction system for possible vacuum leaks.
SPARK TEST
- Using an ohmmeter, check resistance of each spark plug wire. See HIGH TENSION WIRE RESISTANCE table. Check for strong Blue spark at coil wire and at each spark plug wire by holding wire terminal 5/16" from ground while cranking engine.
- Disconnect and inspect all related ignition system connectors and harness. Clean or repair if necessary. If related connectors and harness are okay, remove negative battery cable. Disconnect secondary and primary leads from ignition coil.
- Using ohmmeter, check primary resistance between primary terminals of coil. Check secondary resistance between coil secondary terminal and primary positive terminal. Replace coil if readings are not within specifications. See «IGNITION COIL RESISTANCE»(ref-14581-S40108539112000122600000) table.
| Application | Ohms |
|---|---|
| Passat | (1) |
| (1) Information not available at time of publication. | |
| (1) | Information not available at time of publication. |
HIGH TENSION WIRE RESISTANCE