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You have discovered four different sets of error codes that are not likely to be related: Throttle pos sensor, coolant sensor, secondary air inj., and O2 sensors.

P1117: Engine Coolant Sensor
P1121:: Throttle Position Sensor inconsistent with MAF
P1124: Throttle Position Sensor out of range
P0140: O2 sensor Bank 1, sensor 2

P1117 Oxygen Sensor Heating 1 After Catalytic Converter - Below Lower Limit

P1121 Oxygen Sensor Heating 2 After Catalytic Converter - Below Lower Limit

P1124 Oxygen Sensing Adaptation Area 1 (Cylinders 1 - 3) - Rich Threshold

P0140 Oxygen Sensor After Catalytic Converter (cylinders 1 - 3) - Interruption of Signal

P0410 Secondary Air Injection System - Signal Implausible (Cylinders 1-3)

P1126 Oxygen Sensing Adaptation Area 1 (Cylinders 4-6) - Rich Threshold

P1411 Secondary Air Injection System - Signal Implausible (Cylinders 4-6)

P0160 Oxygen Sensor After Catalytic Converter (Cylinders 4-6) - Interruption of Signal


There is very little common ground here which is why it looks more like random codes from a damaged DME or harness. It could be as simple as a poor battery ground connection or ign. switch issue. If it were my car I would start at the DME and follow the harness wire looms as they branch off looking for rodent/water damage, chafe, fouled connectors etc. I would look hard at everything that was changed out just prior the the flurry of error codes. I would re-trace my steps to see if I forgot something or fouled it up. It happens.

"Interruption of Signal" is a big clue and usually means a bad connection.