AutoCodes – Volvo – P2191 Volvo

P2191 Volvo Code - System Too Lean At Higher Load Bank 1

Quick Answer

The control module receives information from the heated oxygen sensor (HO2S) about the fuel/air mixture when idling at both the lower and upper part-load range. Common causes include Intake Air Leak, Clogged or Leaking Fuel Injectors, Faulty Oxygen sensor. 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: P2191 Volvo indicates System Too Lean At Higher Load Bank 1.
Common causes: Common causes include Intake Air Leak, Clogged or Leaking Fuel Injectors, Faulty Oxygen sensor.
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 1,127

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 Dec 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2191 Volvo Description

The control module receives information from the heated oxygen sensor (HO2S) about the fuel/air mixture when idling at both the lower and upper part-load range. If the fuel/air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. Diagnostic Trouble Code (DTC) ECM-260A is stored when the long-term trim must be adjusted to almost maximum in the upper part load area

OBDII Code P2191 Volvo - System Too Lean At Higher Load Bank 1 - AutoCodes.com — P2191 Volvo Code - System Too Lean At Higher Load Bank 1

What does this mean?

What are the Possible Causes of the DTC P2191 Volvo?

Intake Air Leak
Clogged or Leaking Fuel Injectors
Faulty Oxygen sensor
Faulty Mass Air Flow (MAF) Sensor
Exhaust System Air Leaks
Fuel injection problem
Engine mechanical condition

How to Fix the DTC P2191 Volvo?

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 P2191 Volvo 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 P2191 Volvo code?

Need more information on how to fix the P2191 Volvo code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2191 Volvo code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P2191 Volvo Code

1. What are the common symptoms of OBDII code P2191 in a Volvo?

- Common symptoms include rough idling, decreased fuel efficiency, lack of power during acceleration, and illuminated Check Engine Light.

2. What does the OBDII code P2191 "System Too Lean at Higher Load Bank 1" in a Volvo indicate?

- This code indicates that the engine is receiving a lean air-to-fuel mixture at higher engine loads on bank 1.

3. What are the potential causes of OBDII code P2191 in a Volvo?

- Potential causes include a vacuum leak, faulty oxygen sensor, clogged fuel filter, malfunctioning mass air flow sensor, or issues with the fuel injection system.

4. How can I diagnose the root cause of OBDII code P2191 in my Volvo?

- Diagnosing the issue may involve conducting a thorough inspection of the intake system for leaks, testing the oxygen sensor, checking the fuel pressure, and inspecting the mass air flow sensor.

5. What are some repair tips for addressing OBDII code P2191 in a Volvo?

- Repair tips may include repairing any vacuum leaks, replacing a faulty oxygen sensor, cleaning or replacing the mass air flow sensor, checking the fuel filter, and ensuring proper fuel pressure.

6. Can driving with OBDII code P2191 in a Volvo cause further damage to the vehicle?

- Continuing to drive with this code may lead to decreased engine performance, reduced fuel efficiency, and potential damage to the catalytic converter over time.

7. How much does it typically cost to repair OBDII code P2191 in a Volvo?

- Repair costs can vary depending on the specific cause of the code, but they may range from a few hundred to a few thousand dollars, including parts and labor.

8. Is it safe to ignore OBDII code P2191 in a Volvo and continue driving the vehicle?

- It is not recommended to ignore this code, as it can lead to poor engine performance, decreased fuel efficiency, and potential long-term damage to the vehicle's components.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P2191 in a Volvo?

- Depending on the root cause of the code, some repairs may be possible for a DIY enthusiast with basic automotive knowledge, such as inspecting for vacuum leaks or replacing an oxygen sensor.

10. How often should I get my Volvo's engine scanned for OBDII trouble codes like P2191?

- It is recommended to have your vehicle's engine scanned for trouble codes regularly, especially if you notice any symptoms or changes in performance, to address issues promptly.