The throttle position sensor measures the amount of air entering the engine. If it fails or becomes dirty, it can send inaccurate signals, affecting idle and low acceleration performance.
2. Mass Air Flow Sensor (MAF)
The MAF sensor measures the density of air flowing into the engine. If it becomes clogged or dirty, it can cause a decrease in the engine's air-fuel mixture, leading to stalls.
3. Idle Air Control (IAC)
The IAC valve controls the flow of air into the engine during idle. Over time, carbon deposits can build up in the valve and interfere with its operation, causing the engine to stall.
4. Fuel Pressure Regulator (FPR)
The FPR ensures that the engine receives the correct amount of fuel. If it becomes faulty, it may cause fuel pressure fluctuations, leading to engine stalling.
5. Fuel Filter
A clogged fuel filter can restrict fuel flow to the engine. This can cause a decrease in power, rough running, hesitation, and stalling.
6. Vacuum Leak
A vacuum leak can cause a lean air-fuel mixture, leading to engine stalling. Check for loose or damaged vacuum hoses, especially near the intake manifold.
7. Spark Plugs and Ignition System
Malfunctioning spark plugs or a faulty ignition coil can lead to weak or no sparking, hindering the fuel ignition process. This can cause engine stalling.
8. Faulty Oxygen Sensor
Inaccurate readings from the oxygen sensor can disrupt the engine's fuel-to-air balance and impact idle stability.
9. Faulty Fuel Pump
A faulty fuel pump can deliver insufficient fuel to the engine, causing hesitation, fuel lean condition, and stalling.
