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Code

P0175

Fuel / Air

System too rich — Bank 2

Bank 2 is running rich.

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Most likely causes

Faulty MAF
Leaking injector
High fuel pressure
Faulty O2 sensor

Symptoms you may notice

Check engine light
Fuel smell
Poor economy

Checks to run

Check fuel trims live
Test fuel pressure
Inspect injectors

Tools you may need

OBD-II scanner Fuel pressure gauge

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Fuel / Air

System too lean — Bank 1

System too rich — Bank 1

Oxygen sensor — bank 1, lean signal during closed loop

System too lean — Bank 2

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