Originally Posted by
TurboCamaro
I have a 2017 Camaro A8 with a Procharger on it. It makes good power and drives nice however there are permanent codes, P0121, P1400, P2097 P2099, showing up with Diagnostics in HP Tuners. The MIL Light is not displaying on the dash. The rear O2 are swinging from 0v to 900mv and the trims are fine on the front sensors so am not sure why it is throwing P2097 & 99 Post catalyst fuel trim system high limit bank 1 & 2. Thoughts on what these codes could be from.
Cal and log attached.
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