Engine Controls - Tests W/Codes: Description
WARNING: This page is about a different car, the 1994 Mazda Navajo. However, it is still accessible from the selected car via links, so may be relevant.
Following procedures are functional tests of EEC-IV system. See Figure. These 5 basic test steps must be carefully followed in sequence to avoid misdiagnosis or replacement of non-faulty components.
- Visual Check & Equipment Hookup
- KOEO (Key On Engine Off) SELF-TEST
- Computed Timing Check
- KOER (Key On Engine Running) SELF-TEST
- Continuous Monitor Mode (Wiggle Test)