Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Test Notes

NOTE: You should enter this Pinpoint Test only when directed here.

This Pinpoint Test is intended to diagnose only the following:
- Spark Plugs
- Spark Plug Wires

CHECKOUT:

- Visually inspect the engine compartment to ensure all vacuum hoses and spark plug wires are properly routed and securely connected.

- Examine all wiring harnesses and connectors for damaged, burned or overheated insulation and loose or broken conditions.

- Be certain the battery is fully charged.

- All accessories should be OFF during diagnosis.

EQUIPMENT:

- Engine Analyzer (Rotunda 010-00951 or an equivalent.)

NOTE: In order for the diagnostic procedures to provide accurate results, it is essential that the calibration of the engine analyzer be maintained. Refer to the equipment manual for the procedure to calibrate the engine analyzer.