I have recently taken to the local garage to change two tires. I usually take it here for MOT & Small jobs (Irrelevant depending on where sensor 3 is 😁). 

 

On the way back I noticed the dreaded flashing glow plug light. Engine management light came on not long after. 

 

Plugged it in, Scanned it & found P242a Bank 1 Sensor 3 error. 

 

I have had trouble locating it. I’ve got some pictures along with the OBD2 reading. 

 

————————

 

 

 

Car Scanner ELM OBD2
DTC report
Selected brand: Skoda
VIN: TMBFL25J8C3132456

============1==============
P242A
Raw code: 242A
ECU: Engine control unit
Status: Confirmed
OBDII: Exhaust gas temperature sensor 3, bank 1 - circuit malfunction

============2==============
14355
Raw code: 003813
ECU: Engine control unit
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested

============3==============
14355
Raw code: 003813
ECU: 01. Engine control unit
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
 

Edited 2 August, 20214 yr by Cozza89

Wouldn’t let me add another photo 😁

 

Is the sensor the brown socket?

Edited 2 August, 20214 yr by Cozza89

 

I would suggest its near the turbo

 

this may help in confirming.

 

https://www.youtube.com/watch?v=FXD9EUBhfuI

 

Edited 2 August, 20214 yr by UrbanPanzer

Monitor temperatures displayed in measuring blocks while disconnecting sensors one by one. When the reading for sensor 3 changes, you've found the correct one?

45 minutes ago, UrbanPanzer said:

 

I would suggest its near the turbo

 

this may help in confirming.

 

https://www.youtube.com/watch?v=FXD9EUBhfuI

 

 

40 minutes ago, Wino said:

Monitor temperatures displayed in measuring blocks while disconnecting sensors one by one. When the reading for sensor 3 changes, you've found the correct one?

Hi Lads. 

 

Think I found the culprit. Sat below the turbo (Very awkward to get the hands!) I did notice half the thread showing. not sure if it’s normal or it’s been replaced before, and done a half ass job in fastening it. 

 

The DPF inlet temperature was 999 celsius. So now i’m expecting a large amount of soot buildup. 🙄

 

————

The black shade of the thread was showing , so now i’m wondering to save some £ or some elbow grease, would it not being screwed in fully have caused the error?

 

Edited 2 August, 20214 yr by Cozza89

It's just a thermocouple, they generally work or they don't, 999 degrees suggests it's broken.

So the original culprit to which I thought it was turned out to be correct. 

 

So awkward.

 

I’ve bit the bullet and bought one from eBay – OEM. Taken from a VW Caddy 2010. Which hopefully will do the job 😁