Exhaust pipe bursting at idle has the following symptoms:
1. This can be caused by the spark plug, ignition coil, air intake assembly, air filter, air flow sensor and three items. catalytically, the oxygen sensor has been used for too long;
2. The timing belt may be loose, cracked, etc., which should be checked and replaced regularly;
4. Is there an air leak in the injector rubber ring? the rubber ring of the injector nozzle of any cylinder will affect the idle speed.
Generally speaking, this is due to malfunctioning cylinders or unstable idle speed regulation. Because the cylinder is not working properly and the exhaust is irregular, it will make a popping noise. Islandst recommended to repair it in time.