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Hi,
My escalade is giving me codes P0172 and P0175 (Fuel Trim System Rich) on both banks. I connected an analog pressure gauge to the rail and is reading 140psi at idle.
I understand that the problem should be in the Fuel Pump/ Flue Control System but I haven't been able to determine if the 07 uses an FSCM (Fuel System Control Module) as the 08-14 Escalade do.
Does anybody has an idea where the problem might be and if the Escalade 07 uses an FSCM or not?

Thank you very much for your help!

JC
 
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