What causes unstable idle speed in the Beidou Star (Suzuki Wagon R)?
1 Answers
Here are the possible causes of unstable idle speed (fluctuating high and low) in the Beidou Star (Suzuki Wagon R):1. Throttle body: Mostly related to a dirty throttle body. For vehicles with throttle bodies, if carbon deposits or other contaminants accumulate in the throttle body area, it will reduce air intake and cause unstable idle.2. Idle air control valve failure: The idle air control valve may be stuck or damaged, or there could be an issue with the ECU. Air leaks in the intake manifold can also affect idle speed. Intake manifold or various valve leaks: These faults directly affect the quality of the fuel-air mixture and combustion efficiency. Potential leak points include the intake manifold, vacuum hoses, charcoal canister purge valve, exhaust gas recirculation (EGR) valve, positive crankcase ventilation (PCV) valve, etc., which need to be inspected and repaired one by one.