P2626 — O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1

What Does P2626 Mean?

P2626 is a diagnostic trouble code indicating: O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Common Causes

🔍 Wiring or connector problem

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"CAR WAS NOT IDLING CORRECTLY WOULD HESITATE OR RUNNING EFFICIENTLY. FIST DEALER DIAGNOSED THAT THE VEHICLE NEEDED A NEW PCM. AFTER $1300 AND A NEW PCM, 6 MONTHS GO BY, SAME PROBLEM CAME UP. 2ND DEALER DIAGNOSED A P2626 TO BE A CHAFFED WIRE IN A WIRE HARNESS. $700 REPAIR TO REPLACE TWO WIRES. THERE I"
— Ford Focus owner, 12/03/2018

Source: NHTSA Complaints Database

Most Reported Vehicles for P2626

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	FORD FOCUS

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

Reported Repair Costs for P2626

Based on 3 owner-reported repair costs from NHTSA complaints.

Low End

$130

Typical

$700

High End

$1300

⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 Inspect wiring harness and connectors for damage, corrosion, or loose connections
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P2626: O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1