Operation CHARM: Car repair manuals for everyone.

High Tension (HT) Leads




The ht leads are routed from the ignition coils at the back of the engine to four spark plugs on each bank of the engine block.

An ht lead failure will result in a misfire condition on a specific cylinder.

An ht lead failure may occur for the following reasons:
- Connector /wiring fault
- Faulty lead causing spark tracking to chassis earth
- Damage to ht lead during gearbox removal