P1175
Fuel Trim Cylinder Balance Bank 2
What it means
P1175. Fuel Trim Cylinder Balance Bank 2. This Chevy-enhanced code applies to Silverado, Sierra, Tahoe, Yukon, Express.
Findings, check these first
- Clogged or imbalanced Bank 2 fuel injectors
- Intake manifold gasket leak on the Bank 2 side
- Weak Bank 2 ignition coil causing partial misfire
- Exhaust leak skewing the Bank 2 O2 sensor
- Carbon-fouled Bank 2 intake valves on direct-injection engines
Standard procedure
- Compare Bank 1 versus Bank 2 fuel trims on a Tech2 or GDS2
- Swap Bank 2 coils or injectors side to side to see if the imbalance follows
- Smoke-test the Bank 2 intake runner and gasket area
- Inspect the Bank 2 exhaust manifold for cracks or loose bolts
- Service injectors or valves based on test results, then clear and verify trim balance
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Sources and review
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Last updated 2026-09-13.
Report a correction for P1175. Include your vehicle, the issue and a source if you have one.
This fault is part of the Chevy P1xxx fuel and ignition codes guide. It covers the family and the order to check it.