P0104 on Mazda: How to Diagnose & Fix
Mass or Volume Air Flow "A" Circuit Intermittent
1 Mazda model · 1 documented issue
P0104 on Mazda by model: symptoms, diagnosis and fix
MAF sensor becomes contaminated with dirt or suffers water damage, providing incorrect air intake readings. Causes vehicle to enter "limp mode" with severe performance degradation.
Common Symptoms
- Loss of power, vehicle enters limp mode
- Engine hesitation and jerky acceleration
- Check engine light with codes P0100-P0104
- Erratic idling and misfires
- Vehicle may stall and not restart
How to Fix
Clean MAF sensor with CRC MAF cleaner (#05110) or replace sensor. Do not use brake cleaner or carburetor cleaner as they can damage the sensor.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- CRC 05110 Mass Air Flow Sensor Cleaner, 11-ounce aerosolOEMCRC 05110
Clean a contaminated MAF sensing element after diagnosis Fitment/availability: Live direct product page identifies CRC 05110 MAF cleaner. Use only on a removed MAF according to the label, never substitute brake/carburetor cleaner, never …
- Genuine Mazda PE01-13-215 mass air flow sensorOEMMazda PE01-13-215
Confirm VIN and installed sensor number because the dealer catalog also co
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipTry cleaning first with proper MAF cleaner before replacing
- TipEnsure air filter is clean - dirty filter damages MAF
- WarningDo not over-oil K&N filters (oil contaminates MAF)
- TipDisconnect battery after cleaning to reset ECU
Sources for this issue (1)
P0104 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0104 mean on a Mazda?
P0104 stands for "Mass or Volume Air Flow "A" Circuit Intermittent." The PCM detects an intermittent or erratic MAF sensor 'A' signal — the reading cuts in and out or jumps irrationally rather than failing steadily. Often caused by a loose connection or marginal sensor. On Mazda it is documented across 1 model: CX-5.
What are the most common causes of P0104?
The most common causes of P0104 are: Loose or corroded MAF connector, Chafed/intermittent wiring, Failing MAF sensor element, Vibration-related connection faults, Contaminated sensor. The specific cause varies by vehicle.
How much does it cost to fix P0104 on a Mazda?
Repair costs vary widely with the root cause and Mazda model; each issue on this page carries its own estimate where one is published.
Looking for P0104 on a different make?
View P0104 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.