Why does the Weizhi v2 idle speed fluctuate?
1 Answers
Car idle speed fluctuation reasons are as follows: Intake manifold or various valve leaks: This fault directly affects the quality of the fuel-air mixture and combustion efficiency. Possible leakage points include the intake manifold, vacuum tubes, charcoal canister valve, exhaust gas recirculation (EGR) valve, positive crankcase ventilation (PCV) valve, etc., which require individual inspection. Valve timing fault: Incorrect valve timing, wrongly installed timing belt, excessive carbon buildup on intake/exhaust valves, broken valve springs, etc. Uneven air intake across cylinders will cause unstable idle. Clogged three-way catalytic converter: A clogged three-way catalytic converter not only causes unstable idle but also leads to insufficient power.