Honda Accord 2.3 cleans up the carbon deposit problem.

Hello: With regard to your inquiry, all brands of 4s stores now use disassembly-free cleaning methods to clean carbon deposits, such as disassembly-free cleaning of air inlets, disassembly-free cleaning of fuel injectors and disassembly-free cleaning of three-way catalytic converters. Using cleaning equipment, carbon deposits can be removed without disassembling parts to start the vehicle. Cleaning only needs to remove the throttle body and idle valve, and the maintenance cost of each 4s shop will be slightly different because of the brand of cleaning agent. If these parts need to be cleaned, the maintenance cost is about 1 1,000 yuan; The exhaust pipe has similar noise, which may be a leaking part. Check the exhaust tail section for corrosion. When choosing accessories such as spark plugs, expensive iridium spark plugs, platinum spark plugs, energy-saving spark plugs or spark plugs of major brands may not be able to obtain higher ignition energy, make the engine work more stably or obtain economic fuel consumption. From the point of view of after-sales maintenance, it is best to use the original automobile accessories such as spark plugs, high-voltage lines, oil filters, gasoline filters and air filters provided by 4s stores. The original spark plug is most suitable for vehicles. It is recommended that you go to the 4s shop to replace the original spark plug and high-voltage line.