OBD Guide

P2B7E

EVAP System Pressure Sensor/Switch C Circuit Intermittent

P2B7E is an OBD-II diagnostic trouble code meaning: EVAP System Pressure Sensor/Switch C Circuit Intermittent. Common causes: damage to the sensor wiring harness, oxidation of contacts in connectors. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Intermittent problems starting the engine
  • Unstable engine idling
  • The smell of gasoline in or around the car
  • Increased fuel consumption

Causes

  • Damage to the sensor wiring harness
  • Oxidation of contacts in connectors
  • EVAP pressure sensor malfunction
  • Poor circuit grounding
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Clean contacts in connectors
  3. Check sensor resistance and reference voltage
  4. Replace EVAP pressure sensor if necessary
  5. Check connections to the control unit

Related codes

Error P2B7E by Vehicle Brand

FAQ

What does the P2B7E code mean?

P2B7E is an OBD-II diagnostic trouble code that indicates: EVAP System Pressure Sensor/Switch C Circuit Intermittent

What causes a P2B7E error code?

The most common causes of P2B7E include: Damage to the sensor wiring harness; Oxidation of contacts in connectors; EVAP pressure sensor malfunction; Poor circuit grounding.

How do I fix a P2B7E diagnostic trouble code?

To fix P2B7E: Check the integrity of the sensor wiring harness. Clean contacts in connectors. Check sensor resistance and reference voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2B7E?

Yes, but get it checked soon

How much does it cost to fix P2B7E?

The estimated repair cost for P2B7E is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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