Northstar Engines and System Technical Discussion Discussion, Engine code - EOP in Cadillac Engine Discussion; 2001 DTS. I got a code off my dash P1189 for Engine Oil Pressure (EOP) Switch Circuit. I read that ...
- 11-12-07 05:45 PM #1Cadillac Owners Member
- Automobile(s): 2001 Deville DTS
- Join Date
- Nov 2007
Engine code - EOP
2001 DTS. I got a code off my dash P1189 for Engine Oil Pressure (EOP) Switch Circuit. I read that this could be due to the fact that the sensor is loose and not connected. Where would I find this sensor to connect it again?
- 11-12-07 06:06 PM #2
Re: Engine code - EOP
The oil pressure switch is on the oil filter adapter. If you need to replace it, be sure to use an A/C Delco switch.