Test Notes

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

REMEMBER: Preliminary checks must be performed before continuing with this Pinpoint Test.

Check:

- Electrical connections

- Vacuum leaks

- Fuel level and quality

- Ignition wiring connections

- Air intake filters, tubes and gaskets

- Aftermarket alterations

- Basic engine (valves, timing, etc.)

DESCRIPTION: Pinpoint Test Z is a set of instructions for isolating an intermittent fault. It combines the use of a scan tool with a Breakout Box (BOB), a fuel psi gauge, vacuum gauge, DVOM, transmission tester and ignition tester. To aid in finding the fault, actual values can be compared to typical values in the Diagnostic Reference Value Charts, Normal Scan Data Values - Includes Pids