DTC P0102 — Mass Air Flow Sensor Circuit Low Input
P0102 indicates: Mass Air Flow Sensor Circuit Low Input.
Diagnostic summary
P0102
What it means
Mass Air Flow Sensor Circuit Low Input
Can you drive?
⚠️ Drive with caution
Urgency
Medium 5/10
Typical price
$30 – $350
Check first
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Updated May 27, 2026 Seen on Powertrain
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ℹ️ What does it mean?
Mass Air Flow Sensor Circuit Low Input
🔍 Symptoms
- • Check Engine Light on
- • Reduced engine performance
- • Increased fuel consumption
- • Unusual engine behavior
⚠️ Possible Causes
- ⚠ Dirty MAF sensor
- ⚠ Disconnected MAF connector
- ⚠ Open circuit
- ⚠ Faulty MAF sensor
🚗 Can I drive with this code?
Drive with caution
Drive with caution. Schedule a repair soon.
🔧 How to Diagnose
- 1 Read DTCs with OBD-II scanner
- 2 Check freeze frame data
- 3 Inspect related components
- 4 Clear codes and test drive
🛠️ How to Fix
- 1 Clean MAF sensor with MAF cleaner
- 2 Check connector
- 3 Repair wiring
- 4 Replace MAF
💰 Estimated Repair Cost
Repair cost by car / region
Early rough estimate. Accuracy improves as more real repair stories are added.
DIY / parts$11 – $228
Mechanic / labor$14 – $263
Repair range$30 – $350
❓ FAQ
What does P0102 mean?
Mass Air Flow Sensor Circuit Low Input
How serious is P0102?
Severity: medium. Drive with caution. Schedule a repair soon.
How much does it cost to fix P0102?
Estimated repair cost: $30–$350 depending on vehicle and region.
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