Meaning of codes? P0118, P0123, P1115, P1121 - 1998 Oldsmobile Intrigue

https://repairpal.com/obd-ii-code-p0121

p1115 is coolant temp intermittently high. Could be the sensor or wiring/plug.
p1121 is TPS is invalid. Again this could both the sensor or wiring/plug. Takes a volt /ohm meter and a bit of time to figure out.

02 sensors under where your cadillac convertor is.. And your air intake sensor..I bet

You have an incredible amount of codes, so I would look for a abrasion in the wiring harness.

here r your trouble code meanings:
1) p0123-throttle position sensor circuit, high input.
2)p0117-engine coolant temperature circuit, low input.
3)p0118-engine coolant temperature ciurcuit , high input.

Sounds like a bad engine temp sensor to me. Also could be a intake or EGR leak causing the 02 problem

Hello! The common point is that all 6 codes are associated with the 5 volt DC reference supply...Tell me exactly what went on with the seat cable repair...Include wire color codes...

Guru..........Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

You don't need a dealer. Where did that come from?
Go down the street to the nearest repair shop

Hope this helps,

Trouble Code: P1441 (2.2L L4 VIN F Auto)
EVAP System Flow During Non-Purge Print this code data
Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• EVAP Details
• MIL Details

Trouble Code Conditions:
DTC P0107, P0108, P0112, P0113, P0117, P0118, P0121-P0123, P0125, P0440, P0442, P0443, P0446, P0449, P0452, P0453, P1106, P1107, P1111, P1112, P1114, P1115, P1121 and P1122 not set, engine started, vehicle speed less than 75 mph, system voltage over 10.0v, ECT and IAT sensors from 39-86ºF and within 16ºF at startup, BARO sensor over 75 kPa, fuel level from 15-85%, PCM detected a continuous open purge flow condition with the fuel tank pressure decreasing to less than -11" H2O during the test. The PCM seals the EVAP system by commanding the EVAP Purge valve "off" and the EVAP Canister Vent valve "on". The PCM monitors the fuel tank pressure (FTP) sensor to detect if a vacuum is being drawn on the EVAP system. If vacuum in the EVAP system is more than a set value for a certain time, this code is set.

Possible Causes:

• An improperly installed or damaged EVAP canister purge valve
  
• A temporary blockage in the EVAP canister purge valve, purge pipe, or EVAP canister could cause an intermittent condition
  
• FTP sensor is out-of-calibration, damaged or "skewed"
  
• Purge solenoid valve is damaged or has failed
  
• PCM has failed
  
• TSB 02-06-04-046 contains a repair procedure for this code
  

try cleaning all engine gronds and grounds on battery tray there was an issue with wiring to the mass meter and tps