Could the map sensor cause codes po171 po174?

Yes, a faulty map sensor can contribute to the P0171 and P0174 codes, which indicate a lean condition in the engine (too much air and not enough fuel). If the map sensor is malfunctioning, it may provide incorrect readings to the engine control unit (ECU), leading to improper air-fuel mixture adjustments. This can cause the engine to run lean, triggering those specific trouble codes. However, other factors such as vacuum leaks, fuel delivery issues, or clogged air filters should also be considered in diagnosing these codes.