G - Testing Notes

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


REMEMBER


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


- Excessive blow-by

- PCV malfunction

- Vacuum leaks

- Fuel pressure

- Throttle sticking or linkage binding


This Pinpoint Test is intended to diagnose only the following:


- MAP/BARO sensor

- Throttle Position (TP) sensor

- Mass Air Flow (MAF) sensor

- Air Charge Temperature (ACT) sensor

- Fuel Injectors


DESCRIPTION


This In-Range Self-Test was designed to detect in-range failures of the MAF sensor, TP sensor or the fuel delivery system. The EEC processor will use information from these areas based on vehicle load to generate three independent values. The three independent values will be continuously monitored by the EEC processor and if one of the values differ significantly from others during normal vehicle operation, Continuous Memory codes will be displayed.