Brakes Plus PLano, Tx Not honest about repair jobs Internet

I just want to warn people about this location of Brakes Plus. They are not completely honest about automotive repair. I had a service engine light on and ask them to inspect and repair. THe Diognostic said o2 sensor and circuit board failure & bad 4th Cylinder. They told me I needed a tune up w/new wires, plugs & dist cap and new O2 sensor and an replace an HO2 sensor. The tune up cost me $350 but my service engine light still lights up. Now they tell me that all chevy's have this right side cylinder problem and they want to fix all of them but that runs about $800 more. So I am stuck fixing just the one for $400.Stay away from this repair shop as they are not completely honest and the average consumer has to have that with auto repairs.