P2192 moderate

System Too Rich at Higher Load (Bank 1)

The P2192 code means the vehicle's onboard diagnostic system has detected: System Too Rich at Higher Load (Bank 1). This is a moderate severity code.

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Keep driving?: Short distances only
DIY difficulty: moderate
Estimated cost: $50 - $400 (parts and labor)

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Common Symptoms

Check Engine Light on
Rich exhaust smell
Reduced fuel economy
Black smoke from exhaust
Rough idle or misfires

Probable Causes (Ranked by Likelihood)

Leaking or stuck-open fuel injector Very High
High fuel pressure from faulty fuel pressure regulator High
Contaminated or faulty mass airflow sensor Moderate
Clogged air filter restricting airflow at higher loads Moderate
Faulty oxygen sensor providing incorrect readings Low

Step-by-Step Diagnostic Procedure

Check fuel pressure at idle and under load -- compare to manufacturer specs
Inspect fuel injectors for leaks or sticking using a noid light and flow test
Clean or replace the mass airflow sensor and retest
Inspect the air filter and intake tract for restrictions or collapse under boost
Monitor short-term and long-term fuel trims at higher RPM using a scan tool

Frequently Asked Questions

What does System Too Rich at Higher Load mean?

It means the engine control module has detected that the air-fuel mixture is too rich (too much fuel relative to air) specifically when the engine is under higher load conditions, such as acceleration or climbing hills.

Can I keep driving with P2192?

You can drive short distances, but prolonged driving with a rich condition can damage the catalytic converter and foul spark plugs, leading to more expensive repairs.

Is P2192 related to P0172?

Yes, P0172 indicates a general rich condition on Bank 1, while P2192 is more specific to rich running at higher engine loads. Both point to excess fuel delivery on the same bank.