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What do IG1 and IG2 represent in automotive circuits?

1 Answers

JulianLee

07/29/25 6:14pm

In automotive circuits, IG1 and IG2 represent two types of spark plugs. Below is an introduction regarding spark plug oil leakage: Consequences: Spark plug oil leakage can cause various abnormalities in the vehicle, such as increased fuel consumption (iridium spark plugs save over 10% fuel), reduced acceleration power, and engine shaking. Spark plug oil leakage is typically caused by issues with the piston rings, valve stem seals, or fuel injectors. Regardless of the cause, the spark plugs should be replaced. Reasons: Spark plug oil leakage may result from damaged fuel injectors, valve cover gasket leaks allowing oil to reach the spark plugs, or problems with the piston rings and valve stem seals. The specific cause may require diagnosis at a professional repair shop. Spark plug oil leakage can lead to increased vehicle fuel consumption (extreme combustion iridium spark plugs reduce fuel consumption by over 10%), poor acceleration, and failed emissions tests. It is recommended that vehicle owners conduct regular inspections and replace spark plugs promptly.

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