Responding to an Austrian customer's inquiry about the Volkswagen Polo usage：Pozdrav Možete mi reći zašto mi se gasi polo 1.0 1999godina.. Ugasi se u brzini i pali iz druge... I dava gas u prazno kad se stisne malo više gasa... Ali to je do kumplunga mislim.. Ne možemo skontat zašto se gasi
It sounds like your 1999 VW Polo 1.0 is stalling while in gear and only restarting on the second attempt. Additionally, you're experiencing issues with revving in neutral when pressing the gas pedal lightly.
Possible Causes & Solutions:
Idle Control Valve (IAC) / Throttle Body Issues
A dirty or faulty idle control valve could be causing the engine to stall at low speeds.
Try cleaning the throttle body and IAC valve with a proper cleaner.
Fuel System Problems
A clogged fuel filter or weak fuel pump can cause intermittent stalling.
Check the fuel pressure and replace the filter if it hasn't been changed recently.
Air Intake & Vacuum Leaks
Check for leaks in the intake manifold or vacuum hoses. A vacuum leak can cause irregular idling and stalling.
Clutch Issues (Since You Mentioned It)
If the clutch is slipping or dragging, it could cause unusual engine behavior.
Test if the stalling happens only when engaging the clutch-if so, it could be a clutch or flywheel problem.
Sensors (MAF, MAP, Crankshaft Position Sensor)
A faulty MAF (Mass Airflow Sensor) or MAP sensor can cause unstable idling and stalling. Try disconnecting the MAF to see if the engine runs better.
A failing crankshaft position sensor can cause random stalls and difficulty restarting.
Recommended Next Steps:
Scan for error codes (OBD2 scanner) to see if there are any fault codes.
Start with cleaning the throttle body and IAC valve.
Check the fuel system (pump, filter, injectors).
Inspect for vacuum leaks or worn-out clutch components.
If the issue persists, a mechanic may need to test the electrical sensors and fuel delivery system more thoroughly.
