P2072 low

Fuel Level Sensor 'B' Circuit Intermittent

The P2072 code means the vehicle's onboard diagnostic system has detected: Fuel Level Sensor 'B' Circuit Intermittent. This is a low severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: easy
Estimated cost: $100 - $400 (parts and labor)

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Common Symptoms

Check Engine Light on
Fuel gauge jumps erratically
Fuel range display fluctuates
Low fuel warning comes and goes
No engine performance issues

Probable Causes (Ranked by Likelihood)

Intermittent connection at fuel level sensor B Very High
Worn sensor contacts in fuel tank High
Loose wiring connector at tank or ECM Moderate
Sulfur buildup on sensor element Low

Step-by-Step Diagnostic Procedure

Wiggle test wiring at sensor connector while monitoring data
Monitor sensor B output for dropouts or spikes
Inspect connector pins for looseness
Check sensor element for contamination

Frequently Asked Questions

What does P2072 mean?

P2072 indicates: Fuel Level Sensor 'B' Circuit Intermittent. The ECM has detected an issue with this sensor or circuit.

Is P2072 serious?

Not urgent, but should be repaired to maintain accuracy and efficiency.

Can I diagnose this myself?

Basic diagnosis is possible with a scan tool and multimeter. Check wiring, connector condition, and sensor readings. Compare data to manufacturer specifications.