OBD Guide

P00B8

MAP - Mass or Volume Air Flow Correlation Bank 2

P00B8 is an OBD-II diagnostic trouble code meaning: MAP - Mass or Volume Air Flow Correlation Bank 2. Common causes: dmrv malfunction, dbp malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • DMRV malfunction
  • DBP malfunction
  • Air leaks in the intake tract
  • Air filter dirty
  • Wiring harness damage
  • ECU software error

How to Fix

  1. Check the condition of the air filter
  2. Inspect the intake tract for leaks
  3. Check the connection and condition of the wiring harness to the sensors
  4. Test the MAF and DBP
  5. If necessary, replace faulty sensors
  6. Reset the error and check if it returns

Related codes

Error P00B8 by Vehicle Brand

FAQ

What does the P00B8 code mean?

P00B8 is an OBD-II diagnostic trouble code that indicates: MAP - Mass or Volume Air Flow Correlation Bank 2

What causes a P00B8 error code?

The most common causes of P00B8 include: DMRV malfunction; DBP malfunction; Air leaks in the intake tract; Air filter dirty.

How do I fix a P00B8 diagnostic trouble code?

To fix P00B8: Check the condition of the air filter. Inspect the intake tract for leaks. Check the connection and condition of the wiring harness to the sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00B8?

Limited driving only, diagnose soon

How much does it cost to fix P00B8?

The estimated repair cost for P00B8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat