Engine Controls - Tests W/Codes: Description
WARNING: This page is about a different car, the 1994 Mazda B3000 and 1994 Mazda B2300. 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)