AutoCodes – Oldsmobile – P1174 Oldsmobile

P1174 Oldsmobile Code - Fuel Trim Cylinder Balance Bank 1

Quick Answer

The Fuel Trim Cylinder Balance diagnostic detects a rich or lean cylinder to cylinder air/fuel ratio imbalance in each bank. Common causes include Clogged Fuel Injectors, Faulty Oxygen sensor, Ignition problem. 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
P1174 Oldsmobile indicates Fuel Trim Cylinder Balance Bank 1.
Common causes
Common causes include Clogged Fuel Injectors, Faulty Oxygen sensor, Ignition problem.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,426
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 04, 2020
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Code P1174 Oldsmobile Description

The Fuel Trim Cylinder Balance diagnostic detects a rich or lean cylinder to cylinder air/fuel ratio imbalance in each bank. The diagnostic monitors the pre-catalyst heated oxygen sensor (HO2S) signal's frequency and amplitude characteristics by calculating an accumulated voltage over a predetermined sample period. An imbalance is indicated when multiple samples of the accumulated voltage are consistently higher than the desired value.
OBDII Code P1174 Oldsmobile - Fuel Trim Cylinder Balance Bank 1 - AutoCodes.com
P1174 Oldsmobile Code - Fuel Trim Cylinder Balance Bank 1

What are the Possible Causes of the DTC P1174 Oldsmobile?

  • Clogged Fuel Injectors
  • Faulty Oxygen sensor
  • Ignition problem
  • Fuel injection problem
  • Engine mechanical condition

How to Fix the DTC P1174 Oldsmobile?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1174 Oldsmobile 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 P1174 Oldsmobile code?

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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 P1174 Oldsmobile Code

1. What does OBDII code P1174 on my Oldsmobile indicate?

- The P1174 code specifically refers to Fuel Trim Cylinder Balance Bank 1 being outside the normal operating range.

2. What are common symptoms of a P1174 code in an Oldsmobile?

- Common symptoms include decreased fuel efficiency, rough idle, engine misfires, and potentially a check engine light.

3. What are the possible causes of a P1174 code on an Oldsmobile?

- Causes can include a faulty oxygen sensor, vacuum leaks, clogged fuel injectors, a malfunctioning mass airflow sensor, or issues with the fuel pressure regulator.

4. How can I diagnose the source of a P1174 code in my Oldsmobile?

- To diagnose the issue, you may need to perform a visual inspection for leaks, test the oxygen sensor, check the fuel injectors, and inspect the mass airflow sensor.

5. Can a P1174 code be fixed by simply resetting the engine light?

- Resetting the engine light may temporarily clear the code, but it is recommended to address the underlying issue to prevent further damage to the vehicle.

6. Is it safe to continue driving my Oldsmobile with a P1174 code present?

- It is not advisable to continue driving with a P1174 code as it can lead to decreased performance and potentially cause damage to other engine components.

7. How much does it typically cost to repair a P1174 code on an Oldsmobile?

- The cost of repair can vary depending on the specific cause of the code, but it may range from a few hundred to a few thousand dollars.

8. Can a DIY enthusiast fix a P1174 code on an Oldsmobile?

- Depending on the underlying issue, some DIY enthusiasts may be able to address the problem themselves, but others may require professional assistance.

9. Will a P1174 code cause my Oldsmobile to fail an emissions test?

- Yes, a P1174 code can cause your vehicle to fail an emissions test as it indicates an issue with the fuel system that affects emissions.

10. How often does a P1174 code occur in Oldsmobile vehicles?

- The P1174 code is not extremely common, but it can occur in Oldsmobile vehicles due to various factors affecting the fuel trim balance.

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