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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Ignition Cable: Testing and Inspection

1. Remove ignition wires from engine.
2. Measure resistance of each wire. Readings should be:

No.
1 8.61k to 20.56k ohms
2 9.00k to 21.48k ohms
3 7.24k to 17.34k ohms
4 6.11k to 14.69k ohms
5 5.47k to 13.20k ohms
6 5.13k to 12.30k ohms
Coil lead 1.8k to 4.10k ohms

3. If wires are not to specification, replace wires.