Table of contents: Testing 🠇 Adjustment 🠇
Testing
1. If a fault appears in the fuel injection system, first ensure that all the system wiring connectors are securely connected and free of corrosion. Then ensure that the fault is not due to poor maintenance; ie, check that the air cleaner filter element is clean, the spark plugs are in good condition and correctly gapped, the cylinder compression pressures are correct, the ignition timing is correct and that the engine breather hoses are clear and undamaged, referring to Chapters 1A, 2A and 5B for further information.
2. If these checks fail to reveal the cause of the problem, the vehicle should be taken to a suitably-equipped Peugeot dealer for testing. A wiring block connector is incorporated in the engine management circuit, into which a special electronic diagnostic tester can be plugged; the connector is clipped onto the side of the ECU mounting bracket. The tester will locate the fault quickly and simply, alleviating the need to test all the system components individually, which is a time-consuming operation that carries a high risk of damaging the ECU.
Adjustment
3. On 1360 cc (K6B engine) models without a catalytic converter, the idle mixture (exhaust gas CO level) is adjustable. Refer to Chapter 1A for information on the adjustment procedure. The engine idle speed is not adjustable and is fully under the control of the ECU.
4. On all other models, experienced home mechanics with a considerable amount of skill and equipment (including a good-quality tachometer and a good-quality, carefully-calibrated exhaust gas analyser) may be able to check the exhaust CO level and the idle speed. However, if these are found to be in need of adjustment, the car must be taken to a suitably-equipped Peugeot dealer. Neither the mixture (exhaust gas CO level) or idle speed are adjustable and should either be incorrect, a fault must be present in the fuel injection system.
Article republished from the website PeugeotBook.ru