AutoCodes – Cadillac – P1174 Cadillac

P1174 Cadillac 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 Cadillac 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 15,269
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 04, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1174 Cadillac 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 Cadillac - Fuel Trim Cylinder Balance Bank 1 - AutoCodes.com
P1174 Cadillac Code - Fuel Trim Cylinder Balance Bank 1

What are the Possible Causes of the DTC P1174 Cadillac?

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

How to Fix the DTC P1174 Cadillac?

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 Cadillac 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 Cadillac code?

Need more information on how to fix the P1174 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1174 Cadillac 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 P1174 Cadillac Code

No Frequently Asked Questions about P1174 Cadillac Code found.

Discuss the causes and fixes for P1174 Cadillac OBDII Code

  • I had an issue with check engine light and these codes for over a year, changed with all
    new Denso brand and still had an issue..

    You have to change all O2 Sensors with OEM AC Delco O2 sensors. This solved the issue with check engine light and 1174/1175 error codes for good! Factory OEM AC Delco O2 sensors is the only way to solve this issue.

  • Thank you for the information!!

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play