OBD-II Generic Error Code P0104: How to Fix It

Q: Can I drive with error code P0104?

You can drive short distances, but the vehicle may experience poor performance, reduced fuel economy, and risk of stalling. It's best to address the issue promptly to avoid further damage.

Q: Will cleaning the MAF sensor fix P0104?

Often yes. Dirt and oil contamination on the sensor can cause intermittent readings. Cleaning is a common and effective first step.

Q: What is the difference between P0101 and P0104?

P0101 indicates the MAF sensor circuit is out of range, while P0104 specifically points to an intermittent signal. The diagnostic approach is similar, but P0104 often involves loose connections or intermittent faults.

Q: What causes intermittent MAF sensor signal?

Common causes include loose or corroded connector pins, damaged wiring, cracked intake hoses, a dirty sensor, or internal failure of the MAF sensor itself.

Q: How much does it cost to fix code P0104?

If cleaning and hose repairs are sufficient, cost can be under $20. Replacing a MAF sensor typically ranges from $80 to $300 for parts, plus labor if done by a shop.

Abstract

Error P0104 indicates that the engine control module (ECM) has detected an intermittent signal from the mass air flow (MAF) sensor circuit. This often points to loose connections, dirty sensor wires, or failing sensor. If left unchecked, it can cause poor fuel economy, rough idling, and hesitation.