P1174 Cadillac Code - Fuel Trim Cylinder Balance Bank 1
Quick Answer
The P1174 Cadillac diagnostic trouble code specifically refers to Fuel Trim Cylinder Balance Bank 1. Common causes include Vacuum leaks in the intake system, Faulty oxygen sensor, Dirty or clogged fuel injectors. 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 Vacuum leaks in the intake system, Faulty oxygen sensor, Dirty or clogged fuel injectors.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1174 Cadillac Description
The P1174 Cadillac diagnostic trouble code specifically refers to Fuel Trim Cylinder Balance Bank 1. This code indicates that there is an imbalance in the air-fuel mixture in one of the cylinders on bank 1 of the engine. This imbalance can lead to poor engine performance, reduced fuel efficiency, and potentially harm the catalytic converter over time. The engine control module (ECM) is constantly monitoring the air-fuel ratio in each cylinder to ensure optimal combustion. When this imbalance is detected, the ECM will trigger the P1174 code.
Common Causes of P1174 Cadillac
- Vacuum leaks in the intake system
- Faulty oxygen sensor
- Dirty or clogged fuel injectors
- Malfunctioning mass airflow sensor
- Issues with the fuel pressure regulator
Symptoms of P1174 Cadillac
- Decreased fuel efficiency
- Rough idling or engine misfires
- Decreased engine performance or power
- Check engine light illuminated on the dashboard
- Engine stalling or hesitation during acceleration
How to Fix P1174 Cadillac
- Perform a thorough inspection of the intake system for vacuum leaks and repair as needed.
- Test and, if necessary, replace the oxygen sensor to ensure accurate air-fuel ratio readings.
- Clean or replace the fuel injectors to ensure proper fuel delivery to the cylinders.
- Inspect and clean the mass airflow sensor to ensure accurate airflow measurements.
- Check the fuel pressure regulator for proper operation and replace if necessary.
Cost to Fix P1174 Cadillac
The typical repair costs for addressing the P1174 Cadillac code can vary depending on the specific cause of the issue. On average, the cost of parts and labor for this repair can range from $200 to $500. It's important to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on the specific diagnosis and repairs needed for your vehicle. Keep in mind that labor rates can vary based on location and the type of repair facility.
Tech Notes for P1174 Cadillac
There is a Factory Service Bulletin for all 2000-2013 Cadillac models:
2000-2013 Cadillac Factory Service Bulletin OBDII Code P1174
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
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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.