This means the car's computer is receiving incorrect information about the amount of air entering the engine. This can lead to a variety of issues, including:
* Rough idling: The engine might idle unevenly or stall.
* Poor fuel economy: The incorrect air/fuel mixture wastes gas.
* Hesitation or sputtering: The engine might hesitate or sputter during acceleration.
* Reduced power: You might experience a loss of power.
What to do:
1. Get the code verified: While the code 1404 strongly suggests a MAF sensor problem, it's always best to have a mechanic or use an OBD-II scanner to verify the code. Some scanners give more detail than just the code number.
2. Inspect the MAF sensor: Locate the MAF sensor (usually on the air intake tube between the air filter and the throttle body). Check it for any visible damage, dirt, or debris. A dirty MAF sensor is a common cause of this code. Clean it carefully with MAF sensor cleaner (never use anything else as it can damage the sensor's delicate wire).
3. Replace the MAF sensor: If cleaning doesn't solve the problem, the MAF sensor might be faulty and need replacing. It's relatively inexpensive and easy to replace in most cases, but make sure you get a replacement sensor that's specifically designed for your 1999 Saturn SC1.
4. Check for other issues: While the MAF sensor is the most likely culprit, other problems (wiring issues, vacuum leaks, etc.) could also contribute to this code. A professional mechanic can diagnose and fix these more complex issues.
Remember, attempting to fix it yourself involves working with the car's electrical system and the air intake, so if you are not comfortable doing this work, take your Saturn to a qualified mechanic.
