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P0104 — Mass Airflow Circuit Intermittent
CautionEngine/AirLimp to the next safe stop
Seen on: Heavy Truck
Mass Airflow Circuit Intermittent. Common causes: MAF sensor intermittent signal.
Don't risk it — get a diesel tech on the truck.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- MAF sensor intermittent signal
- Loose connector
- vibrating harness
First moves (roadside)
- Wiggle test MAF harness
- secure connector
- replace sensor if fault returns
FAQ
What does P0104 mean?
Mass Airflow Circuit Intermittent. Common causes: MAF sensor intermittent signal.
How serious is P0104?
Caution — Limp to the next safe stop.
What's the most likely cause of P0104?
The most common cause is: MAF sensor intermittent signal. Other possibilities include Loose connector; vibrating harness.
Can I keep driving with P0104?
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Throwing this code right now?
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.