Test TC-120B: Fuel 2/1 System Rich
NOTE:
Perform TEST TC-120A: FUEL SYSTEM 2/1 RICH before proceeding. For connector terminal identification, see CONNECTOR IDENTIFICATION . For component location and wiring diagram, see WIRING DIAGRAMS article.
- Inspect all related wiring and connectors. Repair wiring and connectors as necessary and perform TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES . If wiring and connectors are okay, go to next step.
- Perform each test in order listed in REPAIRING FUEL SYSTEM RICH TESTS table. If a test passes, continue to next test until problem is located.
REPAIRING FUEL SYSTEM RICH TESTS
| Description | Perform Test |
|---|---|
| Fuel Pressure | NTC-5A |
| Ignition System | NTC-2A |
| Engine Coolant Temperature Sensor | NTC-6A |
| MAP Sensor | NTC-8A |
| EVAP Systems | NTC-17A |
| Engine Mechanical Systems | NTC-23A |