AutoCodes – Generic – P1094

P1094 Code - O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1

Quick Answer

P1094 indicates O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1. Common causes include Faulty O2 Sensor Bank 2 Sensor 1, O2 Sensor Bank 2 Sensor 1 harness is open or shorted, O2 Sensor Bank 2 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1094 indicates O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1.
Common causes: Common causes include Faulty O2 Sensor Bank 2 Sensor 1, O2 Sensor Bank 2 Sensor 1 harness is open or shorted, O2 Sensor Bank 2 Sensor 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 10,133

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1094 Description

OBDII Code P1094 - O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1 - AutoCodes.com — P1094 Code - O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P1094?

Faulty O2 Sensor Bank 2 Sensor 1
O2 Sensor Bank 2 Sensor 1 harness is open or shorted
O2 Sensor Bank 2 Sensor 1 circuit poor electrical connection

How to Fix the DTC P1094?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1094 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

P1094 BMW — O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1
P1094 MINI — O2 Sensor Circuit Slow Response in Rich Control Range Bank 2 Sensor 1
P1094 Subaru — Tumble Generated Valve Signal 1 Circuit Malfunction Open

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.