AutoCodes – Saturn – P1174 Saturn

P1174 Saturn Code - Fuel Trim Cylinder Balance

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 Saturn indicates Fuel Trim Cylinder Balance .
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.

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Code Popularity 32,166

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 04, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P1174 Saturn 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 Saturn - Fuel Trim Cylinder Balance - AutoCodes.com — P1174 Saturn Code - Fuel Trim Cylinder Balance

What does this mean?

What are the Possible Causes of the DTC P1174 Saturn?

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

How to Fix the DTC P1174 Saturn?

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 does this mean?

Code Tech Notes

The P1174 code sometimes is triggered by clogged fuel injectors. Start by using high octane fuel and/or fuel additive to clean injectors. If the problem persists fuel injectors may need to be replaced.

There is a Factory Service Bulletin for the following Saturn models:
2000-2008 Saturn Models
2000-2008 Saturn Factory Service Bulletin OBDII Code P1174

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1174 Saturn 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.

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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 Saturn Code

No Frequently Asked Questions about P1174 Saturn Code found.

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Penny
Date: March 11, 2019 at 10:10 pm

I have replaced all injectors, 2 upstream o2 sensor, purge valve , maf ,air filter, camshaft sensor, catalytic converter bank 1 , pcv valve, spark plugs, and the error code P1174 is still showing. Please help!

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OBDIITech
Date: March 13, 2019 at 4:52 pm

I apologize for the late response. Let me check if I can find more information. What model and year is your vehicle?

Reply to Comment
Paula Renee
Date: July 14, 2023 at 2:56 pm

I have the same situation on a 08 Saturn VUE, 4cyl.

Reply to Comment
OBDIITech
Date: July 14, 2023 at 8:42 pm

Start by checking for intake or exhaust leaks. According to a national database of repair for the same engine code and vehicle, if the injectors, spark plugs, and MAF are OK, the problem could be an intake or exhaust leak.

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