P0104 Code - Mass Or Volume Air Flow Circuit Intermittent
Quick Answer
The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0104 indicates Mass Or Volume Air Flow Circuit Intermittent.
- Common causes
- Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0104 Description
What are the Possible Causes of the DTC P0104?
- Dirty Air Filter
- Dirty Mass Air Flow (MAF) Sensor
- Intake air leaks
- Faulty Mass Air Flow Sensor
- Mass Air Flow Sensor harness is open or shorted
- Mass Air Flow Sensor circuit poor electrical connection
How to Fix the DTC P0104?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0104 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P0104 Chrysler — Mass Air Flow Sensor Throttle Angle and Speed
- P0104 Dodge — Mass Air Flow Sensor Throttle Angle and Speed
- P0104 Ford — Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent
- P0104 Jeep — Mass Air Flow Sensor Throttle Angle and Speed
- P0104 Land Rover — Mass or Volume Air Flow Circuit Intermittent
- P0104 Lincoln — Mass Or Volume Air Flow Sensor 'A' Circuit Intermittent
- P0104 Mazda — Mass Or Volume Air Flow Circuit Intermittent
- P0104 Mercedes-Benz — Mass or Volume Air Flow Circuit Intermittent
- P0104 Mercury — Mass or Volume Air Flow 'A' Circuit Intermittent
Frequently Asked Questions about P0104 Code
1. What are the common symptoms of OBDII code P0104 (Mass or Volume Air Flow Circuit Intermittent)?
- Common symptoms include rough idling, poor acceleration, stalling, and decreased fuel efficiency.
2. What are the possible causes of OBDII code P0104?
- Possible causes include a faulty mass air flow (MAF) sensor, damaged wiring or connectors, a clogged air filter, or a vacuum leak.
3. How can I diagnose the issue related to OBDII code P0104?
- You can diagnose the issue by checking the MAF sensor's wiring and connections, inspecting the air filter, testing for vacuum leaks, and using a scan tool to monitor MAF sensor data.
4. Can a dirty air filter trigger OBDII code P0104?
- Yes, a clogged or dirty air filter can disrupt the airflow readings to the MAF sensor, potentially causing code P0104 to trigger.
5. What is the typical repair for OBDII code P0104?
- The typical repair involves cleaning or replacing the MAF sensor, repairing any damaged wiring or connectors, replacing the air filter, and fixing any vacuum leaks.
6. Can I drive my vehicle with OBDII code P0104 present?
- It is not recommended to drive your vehicle with code P0104 present, as it can lead to poor performance and potential long-term damage to the engine.
7. How much does it cost to repair OBDII code P0104?
- The cost of repairing code P0104 can vary depending on the extent of the issue and the specific repairs needed, but it generally ranges from $100 to $500.
8. Will resetting the OBDII code P0104 make it go away permanently?
- Resetting the code may temporarily clear it, but if the underlying issue causing code P0104 is not addressed, the code is likely to reappear.
9. Can a DIY enthusiast repair OBDII code P0104 at home?
- Depending on their skill level and access to tools, a DIY enthusiast may be able to address the issue causing code P0104, such as cleaning the MAF sensor or replacing the air filter.
10. How long does it take to repair OBDII code P0104?
- The repair time for code P0104 can vary based on the specific cause and the complexity of the repair, but it typically takes a few hours to complete.
Discuss the causes and fixes for P0104 OBDII Code
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I'm having a P0104 error code, but there's no MAF sensor in my car (Focus mk2). There is a MAP sensor in it, but that should have another error code. Any idea how this is possible ?
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Are you sure you don't have one?
Nothing like this one? #3 on the image is the MAF
Click here to enlarge image -
100% sure. There is a T-MAP sensor closer to the engine, but that should have specific trouble codes I think
Any idea ? This is driving me crazy :)
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No idea. As far as I know, all the vehicle I know have a Mass Air Flow (MAF) sensor. What year is your vehicle, and engine size?
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It's a 2010 ford focus 1.4 gasoline
Did some research on it, and it achieves the same with the T-MAP sensor in combination with Siemens Powertrain Control Module (PCM)
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Unfortunately, I don't have the factory service manual for that model, only have the manual for the Focus with 2.0 engine.
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