Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Jimbob on 25 March 2016, 13:06:39

Title: B1S2 Problem P0141
Post by: Jimbob on 25 March 2016, 13:06:39

EML On

codes
P0141 - O2 Sensor Heater Circuit Open (Bank 1 Sensor 2)
 (04) - Present

P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
 (08) - Present

Live data on a run (well trip to the car wash)

http://images.omegaowners.com/images/Jimbob/jimbob.csv

main noticable data
B1S2 O2 Sensor (Bank 1 Sensor 2) mV
varies from sitting at 0, sitting at 20, and reading sensible values.

from data cleared before hand, the length of the run was enough to bring the codes back to intermittant.

Good spray of carb cleaner in the engine bay reveals no air leaks. 
Sensor and wire visibly perfect, connector clean, and sprayed with contact cleaner.

Thoughts?
I suggest the B1S2 Heater is indeed failing / failed and the sensor wants replacing.


Any one else?

Title: Re: B1S2 Problem P0141
Post by: TheBoy on 25 March 2016, 14:17:52

Meter out from sensor to ECU, and check for signs of loom damage where visible.

Then change the sensor.

Title: Re: B1S2 Problem P0141
Post by: Jimbob on 25 March 2016, 14:21:12

Thoughts on sensor?

New  / pattern / 2nd hand?

Title: Re: B1S2 Problem P0141
Post by: TheBoy on 25 March 2016, 18:27:29

Defo new. If non GM, be careful of supplier due to number of poor quality fakes. So avoid the usual scumbags - egay, amazon marketplace, euroshiteparts, autovaux etc.