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To avoid the hassle of buying a used car and having to take it to the workshop several times to exchange worn parts, and NGK, leading candle maker, ignition cables and oxygen sensors of the world, emphasizes the need for a preventive check of these parts, brake system, clutch, catalyst, Shock absorbers, suspension, Lights, the condition of the belts and other safety items, in addition to a possible need for an oil change.
Segundo a NGK, It is important that a trusted mechanic performs the analysis on the spark plugs and cables annually or every 10 thousand kilometers driven, what happens first. Akira Bando, owner of Akira Auto Repar, installed since 1976 in Guarulhos, in Greater São Paulo, complete: "If the candles are too worn out, most likely, the vehicle has already driven more than 20 thousand km".
"During the inspection and replacement of worn parts, it is possible to make more specific diagnoses such as, for example, know the condition of the engine through the condition of the spark plugs. After the lambda sensor is serviced, to know if the former owner used poor quality or adulterated fuel. Dark, oily spark plugs indicate that the engine is already burning oil. Dark and sooty candles point to high fuel consumption", explains Hiromori Mori, NGK Technical Assistance technician.
Akira Bando recalls that during the review it is also possible to use a scanner diagnostic system to know the approximate mileage of the vehicle, revealing a possible tampering with the odometer. "Furthermore, An experienced mechanic can get an idea of the correct mileage, Observing the wear of the catalytic converters, candles and other components", reinforces the mechanic.
NGK points out that the preventive analysis of spark plugs and cables ensures the operation of the vehicle's ignition, facilitating immediate engine start. Spark plugs with too much wear can decrease the performance of the car, making it difficult to start after a period off like, for example, from night to day. Other problems that can arise are high fuel consumption, irregularities in functioning, failures during resumptions and increased levels of polluting gas emissions. They can also compromise other components, as rotor, distributor and coil/transformer.
the oxygen sensor, ou sonda lambda, as it is also known, is another item produced by NTK and, according to Bando, can have its useful life compromised due to the use of poor quality fuel or irregular engine operation. That is why, The importance of an analysis by an experienced professional, before the used car is purchased.
Improper use of the Lambda Probe or its malfunction can cause a drop in engine performance, in addition to an increase in fuel consumption and the emission of polluting gases.
Second Gang, The analysis must be done by experienced and trusted professionals. Preventive and periodic review avoids future worries, in addition to providing greater savings in relation to corrective maintenance.