GM 3.6L V6 with code P2099

[Scott Poulos]

I have a 2010 Gmc Acadia that has CEL on with code P2099. Anybody have experience with this code and a GM 3.6L engine?? I have come across many possible causes, but nothing definitive. Shop wants to replace the injectors. Very Expensive!!! Thanks for any advice.

Topic

[Richard Kirshy]

Possible causes for this engine code include:
Faulty bank 2 catalytic converter

A faulty mass air flow

or manifold air pressure sensor

Defective bank 2 O2 sensor/s

Burnt, chafed, broken, or disconnected wiring and/or connectors

Engine exhaust leaks

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