What are the reasons why the Volkswagen Tiguan won't start?

[SanJohnny]

Here are the reasons why the Tiguan won't start: 1. Excessive carbon deposits cause the engine oil to be below normal levels, leading to insufficient lubrication and stalling. Replace the engine oil to solve the problem; 2. The crankshaft position sensor's resistance value is abnormal, causing the crankshaft speed signal to disappear after the engine warms up, resulting in engine stalling. Visit a repair shop to adjust the crankshaft position sensor's resistance value; 3. Ignition system failure, overheating of the ignition module preventing normal operation, or ignition voltage failure causing engine stalling. Replace the spark plugs or adjust the ignition voltage; 4. Abnormal throttle signal voltage or improper engine computer control can cause the vehicle to stall while driving. Loss of throttle signal leads to insufficient fuel supply during ignition or driving, causing the vehicle to stall. Visit a repair shop to refresh the throttle data and adjust the central control.