Test Point 8 - Oxygen Regulation Stop (Lean)
TEST POINT 8 - Oxygen regulator Control (lean) - Fault code 1_24Possible Causes, Elimination, Remarks
Mixture preparation problems are preventing the oxygen regulator from operating within its control range. It therefore moves back to its stop.
- Test 1: With the engine running and a CO tester connected, note the CO content (between 0.4-1.2 %).
Too rich: Check fuel pressure, Test Point 17 - Fuel Pressure
- Check injector valves for leaks