Failed emission test, codeP2177,P2187,P2188 & P2195 what are these code

Hi there!

Sorry to hear you're having trouble with your car, hopefully i can shed some light on it for you!

P2177 - System Too Lean At Off Idle Right Bank
P2187 - System Too Lean at Idle (Bank 1)
P2188 - System Too Rich At Idle Bank 1
P2195 - O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)

LEAN and RICH are the technical terms indicating that the car is giving itself to much and to little fuel, unfortunately There is a laundry list of components that could cause this scenario.

Faulty O2 sensor (front)
Faulty gas cap seal Leaky or loose oil filler cap
Air leaking into the intake manifold downstream from the Mass airflow sensor due to the manifold itself,
vacuum hoses off or cracked, leak MAP sensor,
Leak at turbo bypass or it's stuck open,
Leak in the EVAP system hoses.
Faulty MAP sensor EVAP canister purge valve
Fuel injector leak
Fuel pressure regulator faulty Leaks in the exhaust system
Faulty variable camshaft timing
Faulty ECM (engine management computer UNCOMMON)
Faulty O2 preheater (front) Clogged fuel filter
Fuel pump wearing out and producing low pressure.
Faulty mass air flow sensor

With this Mixture of codes it would probably be best to take the car to a shop you like/trust and have them pinpoint the faulty component or components. If you Like to do things yourself you could then to the repair yourself, having only paid for the shop to diagnose the problem and tell you which part needs replacement/repair.

Hopefully this information was helpful, let me know if you have any more questions.

Dan
Automotive service industry 5 years

Is the vehicle from the VW/Audi group?

What make , model , an year vehicle ? These codes can mean different thing's for different make vehicles