P1175 GMC Code - Fuel Trim Cylinder Balance Bank 2
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
- P1175 GMC indicates Fuel Trim Cylinder Balance Bank 2.
- 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.
Code P1175 GMC Description
What are the Possible Causes of the DTC P1175 GMC?
- Clogged Fuel Injectors
- Faulty Oxygen sensor
- Ignition problem
- Fuel injection problem
- Engine mechanical condition
How to Fix the DTC P1175 GMC?
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
There is a Factory Service Bulletin for all 2000-2013 GMC models:
2000-2013 GMC Factory Service Bulletin OBDII Code P1175
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1175 GMC 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 P1175 GMC code?
Need more information on how to fix the P1175 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1175 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1175 GMC Code
What does the OBDII code P1175 mean for a GMC vehicle?
It indicates a fuel trim imbalance in Bank 2, where the engine's computer detects uneven air-fuel ratios for specific cylinders.
What are common symptoms of code P1175 in GMC vehicles?
Symptoms include poor engine performance, rough idling, reduced fuel efficiency, and possible illumination of the check engine light.
What causes the P1175 code on GMC vehicles?
Common causes include dirty or malfunctioning fuel injectors, vacuum leaks, faulty oxygen sensors, or issues with the mass airflow sensor.
Can a dirty air filter trigger the P1175 code in a GMC?
Yes, a clogged or dirty air filter can restrict airflow and contribute to imbalanced fuel trim, potentially causing this code.
How can I diagnose the P1175 code on my GMC?
Start by inspecting oxygen sensors, fuel injectors, air intake, and vacuum lines for damage or contamination. Use a diagnostic scanner to confirm related data.
Do I need to replace oxygen sensors to fix P1175 on a GMC?
Oxygen sensors may need replacement if they’re faulty or sending incorrect readings, but diagnosis should confirm their condition first.
Can bad fuel cause the P1175 code on a GMC vehicle?
Yes, using low-quality or contaminated fuel can disrupt combustion and fuel trim balance, triggering the code.
Is the P1175 code specific to Bank 2 on a GMC engine?
Yes, this code refers specifically to fuel trim imbalance in Bank 2, which is the side of the engine opposite Bank 1.
How serious is the P1175 code for GMC vehicles?
While the vehicle may still run, ignoring the code can lead to further engine damage or increased emissions. Prompt diagnosis and repair are recommended.
Can cleaning the fuel injectors resolve the P1175 code for a GMC?
Yes, if clogged or dirty injectors are causing the imbalance, cleaning or replacing them can often resolve the issue.
Discuss the causes and fixes for P1175 GMC OBDII Code
-
If you mean how much voltage is need it for the injector to work 5-14 Volts. If you mean how much voltage the injector connector should have, the answer is battery voltage, around 12V
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
