The Lemon Index

Check engine light · Engine codes

P219B: Bank 2 Air-Fuel Ratio Imbalance.

Powertrain · GenericP219B
Get it fixed soon
What it means

One or more cylinders on bank 2 are getting a different air-fuel mix than the others.

How serious

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

Where a shop starts

Clogged or leaking fuel injector. Then: vacuum leak at one cylinder; faulty O2 sensor.

Owners named P219B in 23 complaints to the U.S. government, most often on the Honda Pilot.

Models that report it most

Complaints that name P219B, by model. Raw counts, not a failure rate: popular models get more complaints. Tap a model for its years, mileage and what owners say fixed it.

P219B by model: P219B Honda Pilot (16)

Years owners report it on most: 2019 Honda Pilot · 2016 Honda Pilot · 2020 Honda Pilot

The details

What P219B means

One or more cylinders on bank 2 are getting a different air-fuel mix than the others. The engine may idle rough or hesitate.

Can I drive with P219B?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

35% of the owner complaints that name P219B also say the car shakes, runs rough or misfires. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P219B
  • Clogged or leaking fuel injector
  • Vacuum leak at one cylinder
  • Faulty O2 sensor
  • Carbon on the intake valves

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Shakes, runs rough or misfires: 35% of complaints
  • Stalls or shuts off: 17% of complaints
  • Loses power or goes into limp mode: 17% of complaints
  • Transmission slips or shifts hard: 13% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P219B most

2019 Honda Pilot (8), 2016 Honda Pilot (5), 2020 Honda Pilot (2).

Related codes

P219A P219C P219D P2198 P219E P219F P2196 P2195

Quick answers

What does P219B mean?

Bank 2 Air-Fuel Ratio Imbalance. One or more cylinders on bank 2 are getting a different air-fuel mix than the others. The engine may idle rough or hesitate.

Can I drive with P219B?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

What causes P219B?

Clogged or leaking fuel injector; Vacuum leak at one cylinder; Faulty O2 sensor; Carbon on the intake valves.

Counts: NHTSA owner complaints whose text names P219B. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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