What is the fault code P049700 for Baojun?

[MicahFitz]

Automobile fault code Wuling Baojun P049700: The input value of the camshaft position sensor is abnormal, Bank 1: Camshaft position sensor (G40)/engine speed sensor (G28): Correlation error, meaning the camshaft position sensor does not match the engine speed sensor. The mismatch between the camshaft and crankshaft speed signals is generally due to incorrect synchronization signals between the camshaft and crankshaft speeds or a fault in the engine control circuit. It could also be an issue with the camshaft position sensor and crankshaft position sensor, or timing misalignment and skipped teeth. If the engine runs without any abnormalities, the car can continue to be driven. However, it is recommended to visit a local 4S store as soon as possible for inspection and repair to identify the specific cause of the fault.

[LeXavier]

I also encountered the P049700 fault code when driving my Baojun. It indicates low purge flow in the evaporative emission system. Simply put, there's a minor issue with the vehicle's emission control. It might be caused by a clogged or stuck purge valve, preventing proper vapor recovery from the fuel tank. Another possibility is a leaking hose or a loose fuel cap allowing air to enter. This type of fault is quite common in domestic vehicles, especially after long-distance driving when the system may accumulate dust. You won't feel any power loss while driving, but that engine warning light on the dashboard will stay on - absolute torture for perfectionists. If it happens, don't panic and start tinkering randomly. First try tightening the fuel cap to see if it's loose. If that doesn't work, take it to your trusted repair shop for a diagnostic scan. Actually it's not a serious issue - replacing the valve for a few hundred yuan will fix it. After repair, you'll notice more stable fuel consumption and better emissions. Just remember to check those small engine compartment hoses during regular maintenance to prevent aging.

[Adelyn]

The trouble code P049700 is commonly found in domestic vehicles like Baojun, indicating a low purge flow issue in the evaporative emission system. Based on my experience, the root cause lies in the EVAP system's purge circuit, where the purge valve may be malfunctioning or the pipeline is clogged. In some cars, fuel vapors get trapped in the charcoal canister and cannot circulate, triggering false alarms by the ECU. While it doesn't affect acceleration, it leads to excessive emissions and may cause issues during annual inspections. During diagnosis, you can manually blow air to check if the purge valve responds audibly; no sound usually confirms it's stuck. I've also encountered cases where the charcoal canister was saturated or the connector cracked—replacing a small part for just tens of RMB can fix it. Avoid being overcharged at 4S shops for unnecessary major repairs on the entire line. Address it promptly to prevent worsening carbon buildup and increased fuel consumption. If you're handy, purchasing an OBD scanner from Taobao to read codes is worthwhile. Remember to drive for a week after clearing the code to ensure the problem is fully resolved before recurrence.

[LeAaliyah]

The P049700 fault code on a Baojun vehicle usually indicates insufficient purge flow. From an emissions perspective, I'd like to remind you: this type of issue can lead to gasoline vapor escaping and polluting the environment, and may also slightly increase fuel consumption. Common causes include purge valve malfunction, air hose leakage, or a faulty fuel tank cap. Although you might not notice any obvious abnormalities while driving, having the check engine light on can be unsettling. If not repaired promptly, you might experience rough idling during cold starts in winter, and prolonged neglect could damage other components. Typically, mechanics can easily test the vacuum lines and replace the valve for under 100 yuan - it's both cost-effective and quick. Regular cleaning of dust around the engine area to prevent clogging can help avoid this problem.