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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Testing Notes

NOTE: You should enter this Pinpoint Test only when you have been directed here from Quick Test or when directed here from Ignition Systems.


REMEMBER

To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.


^ Fuel: quality and quantity

^ Ignition: general condition, moisture, cracks, damage, etc.

^ Engine: internal, valves, timing belt, camshaft

^ Starter and battery circuit

^ Variable Reluctance Sensor (VRS)

^ EDIS module

^ Coil pack


This Pinpoint Test is intended to diagnose only the following:

^ Spark (related to EEC-IV)

^ Harness circuits: PIP, IGN GND, VPWR

^ Processor assembly