P2194

System Too Rich at Higher Load Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Increased fuel consumption
Reduced engine power
Black smoke from the exhaust pipe
Unstable engine idling
Gasoline smell from exhaust

Causes

Oxygen sensor malfunction (bank 2)
Dirty or faulty injectors
Increased pressure in the fuel rail
Vacuum leak in intake manifold
Malfunction of the mass air flow sensor (MAF)

How to Fix

Check oxygen sensor readings using a scanner
Inspect fuel injectors for dirt or leaks
Check the pressure in the fuel system
Check the tightness of the intake tract
Test or replace the mass air flow sensor

Related codes

P2195 P2196 P0172