To avoid damage to the lambda probe and catalytic converter, the following instructions must be observed:
Refuel with unleaded gasoline only.
When installing the catalytic converter, make at least 2 fillings of the fuel tank with unleaded gasoline before installing the catalyst. In addition, on engines that require supergasoline refueling, shift the ignition timing in the direction "later", since the sulfur gasoline available at the gas station has a lower octane number (95). How much to shift the ignition timing depends on the model.
It is not allowed to start the engine by towing or pushing the car. Unburned fuel, when ignited, can cause overheating and destruction of the catalyst. use in such cases "cigarette lighter".
Avoid frequent starts of a cold engine in a row. In this case, unburned fuel accumulates in the catalyst, and when it is heated, its shock combustion occurs and the catalyst fails.
If it is difficult to start the engine, do not turn on the starter for a long time unnecessarily. When the starter is running, fuel is constantly injected. Determine and eliminate the source of the problem.
If a misfire occurs, remove the fuel pump relay connector before determining the cause. This prevents fuel injection when starting the engine.
Do not test for spark with spark plug tips removed.
Cannot compare cylinders (balance test) by turning off the ignition of one of the cylinders. When the ignition of one of the cylinders is turned off - even with the help of an engine tester - unburned fuel enters the catalyst.
In the event of ignition failures, avoid running the engine at high speeds and repair the fault immediately.
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