AutoCodes – Generic – P2194

P2194 Code - System Too Rich At Higher Load Bank 2

Quick Answer

In order to provide the best possible combination of driveability, fuel economy and emission control, the Powertrain Control Module (PCM) uses a closed loop air/fuel metering system. Common causes include Leaking fuel injector or pressure regulator, High fuel pressure condition, Faulty front HO2S. 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: P2194 indicates System Too Rich At Higher Load Bank 2.
Common causes: Common causes include Leaking fuel injector or pressure regulator, High fuel pressure condition, Faulty front HO2S.
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 9,105

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2194 Description

In order to provide the best possible combination of driveability, fuel economy and emission control, the Powertrain Control Module (PCM) uses a closed loop air/fuel metering system. The PCM monitors the HO2S signal voltage and adjusts fuel delivery based it in closed loop fuel control. Changes in fuel delivery will be indicated by the long-term and the short-term fuel trim values. The ideal fuel trim value is around 0%. The PCM will add fuel when the HO2S signal is indicating a lean condition. Additional fuel is indicated by fuel trim values that are above 0%. The PCM will reduce fuel when the HO2S signal is indicating a rich condition. Reduction in fuel is indicated by fuel trim values that are below 0%. The DTC relevant to fuel trim will be set when the amount reaches excessive levels because of a lean or rich condition.

OBDII Code P2194 - System Too Rich At Higher Load Bank 2 - AutoCodes.com — P2194 Code - System Too Rich At Higher Load Bank 2

What does this mean?

What are the Possible Causes of the DTC P2194?

Leaking fuel injector or pressure regulator
High fuel pressure condition
Faulty front HO2S
Leak in exhaust system
Faulty Mass Air Flow (MAF) sensor

How to Fix the DTC P2194?

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 P2194 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.

Need more information about the P2194 code?

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Need Help with the Code?

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Information for Specific Makes

P2194 Dodge — System Too Rich At Higher Load Bank 2

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.