Question

I got the engine code P2190 on my 2011 Chevrolet Tahoe 5.7L 4WD, what is the fix?

Answer 1

The P2190 code indicates that the air/fuel mixture ratio is too rich, meaning more fuel and air. Several things can set the P2190 code, you could start by checking the air filter and the Mass Air Flow (MAF) for debris obstructing the airflow to the engine. If the air filter and MAF are OK, the next step is checking for fuel component leaks.

P2190 Chevrolet Code - Fuel Trim System Rich At Idle Bank 2
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