2005 Chevy Equinox came up with 16 codes?

Asked by Nov 01, 2016 at 09:18 AM about the 2005 Chevrolet Equinox LT AWD

Question type: Maintenance & Repair

Car's top end was rebuild do to blown head gasket (new heads, gaskets, ect.). Now it has a erratic idle just at operating temp., gets bad gas mileage. It has no check engine light but when scanner was hooked up it came up with 16 faults (P0125, P0420, P0442, P0451, P0454, P0464, P0703, P0705, P0711, P0712, P0713, P0717, P0730, P0741, P0742, P0962). Not sure where to start with this? Is the PCM no good? Any thoughts?

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