⚡ AUTO CODE FIX
🔍
EngineModerate✅ DIY Friendly

P0104

Mass Air Flow Circuit Intermittent

MAF sensor signal drops in and out intermittently.

SeverityModerate
CategoryEngine
Est. Repair Cost$50–$300
Code TypePowertrain
DIY RepairYes

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Clean and reseat MAF connector
  • Step 2:Inspect wiring for chafing
  • Step 3:Wiggle test wiring while monitoring live data
  • Step 4:Replace MAF sensor
💡 Pro Tip: Wiggle the wiring harness while watching live MAF data — intermittent faults often reveal themselves this way.

Repair Cost Estimate

Full Repair Estimate
$50–$300
DIY Possible?
YES
Severity
Moderate

Frequently Asked Questions

What does OBD2 code P0104 mean?+
P0104 stands for Mass Air Flow Circuit Intermittent. MAF sensor signal drops in and out intermittently.
What causes code P0104?+
Loose MAF sensor connector; Damaged wiring harness; Failing MAF sensor; Vibration-related connection issue
How do I fix code P0104?+
Clean and reseat MAF connector; Inspect wiring for chafing; Wiggle test wiring while monitoring live data; Replace MAF sensor
How much does it cost to fix P0104?+
Estimated repair cost for P0104 is $50–$300.
Is P0104 DIY-friendly?+
Yes — P0104 is generally DIY-friendly with basic tools.

AI Diagnosis

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