Contents: Petrol engines ⇓ Petrol and diesel engines ⇓
To avoid damage to the lambda probe and catalytic converter, the following rules must be observed.
Petrol engines
Be sure to refuel with unleaded gasoline only.
Starting a warm engine by accelerating the vehicle or towing it is not allowed. Use an auxiliary battery. Unburned fuel can cause the catalytic converter to overheat and fail when ignited.
If there are difficulties with starting, do not turn on the starter for a long time. When turning the engine with the starter, fuel is constantly injected. It is necessary to find the cause of the difficulty in starting and eliminate it.
The article is copied from the resource: www.MAZbook.ru
Do not drive until the fuel tank is completely empty.
If misfires occur, avoid high engine speeds and eliminate the cause of the malfunction.
Use only recommended spark plugs.
Check for the presence of a spark only with the spark plug plug removed, while simultaneously disabling the fuel injection system by removing the fuel pump relay.
Comparison of cylinders is not allowed (balance check) by switching off the ignition of one cylinder. When switching off the ignition of an individual cylinder (also using a diagnostic tool) unburned fuel will enter the catalytic converter.
Petrol and diesel engines
Do not stop the car over dry grass or leaves. The exhaust system near the catalytic converter gets very hot, and after the engine stops, the heat continues to dissipate.
Do not apply underbody protection compound to exhaust system components.
The exhaust system heat shields cannot be replaced.
When adding or topping up engine oil, be especially careful that the oil level on the dipstick never exceeds the maximum mark. Excess oil gets into the catalyst due to incomplete combustion and can damage the noble metal layer or even disable the catalyst.