1. Fuel System Issues:
- Clogged fuel filter: A dirty or clogged fuel filter can restrict the flow of fuel to the engine, causing it to stall during acceleration.
- Faulty fuel pump: If the fuel pump is not delivering enough fuel to the engine, it can lead to stalling, especially under load.
2. Ignition System Problems:
- Faulty spark plugs or ignition coil: Worn-out spark plugs or a faulty ignition coil can affect the proper ignition of the air-fuel mixture, resulting in engine stalling during acceleration.
- Distributor issues (if applicable): If your 1995 Protege has a distributor, a faulty distributor cap or rotor can cause ignition problems and lead to stalling.
3. Air Intake System Issues:
- Vacuum leaks: A vacuum leak can lead to a lean air-fuel mixture, causing the engine to stall under load. Check for any loose or cracked vacuum hoses.
- Dirty or clogged air filter: A clogged air filter can restrict the flow of air into the engine, leading to a lean mixture and potential stalling.
4. Electrical Issues:
- Loose or corroded battery terminals: Poor electrical connections can lead to intermittent power supply and engine stalling.
- Faulty sensors: A faulty throttle position sensor (TPS), mass airflow sensor (MAF), or oxygen sensor can provide incorrect data to the engine control unit (ECU), affecting the fuel-air mixture and potentially causing the engine to shut off.
5. Mechanical Problems:
- Timing belt issues: If the timing belt is not properly tensioned or has skipped a tooth, it can lead to incorrect engine timing and stalling.
It is recommended to have your 1995 Mazda Protege diagnosed by a qualified mechanic. They will be able to identify the exact cause of the engine stalling issue and recommend appropriate repairs.