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Discussion Starter #1
Hi all,

I own a 2013 Astra GTC 2.0 Automatic and unfortunately while I was driving today I got a warning message saying that the engine has overheated and to stop immediately (the temp gauge was all the up at 130°C+).

After waiting several hours for the engine to cool down I turned on the ignition to see that the temperature was sitting around 80°C on the gauge so I started the engine. About three seconds after starting the engine the temp gauge shot up to 130°C plus and the car sounded like it had entered limp mode.

I plugged in an OBD scanner to find it was throwing two errors; P2428 and P2101. I cleared those codes and it seems to be running fine (I’ve driven it for ~30 miles). I’ve since seen that the Catalyst Temperature Bank 1 Sensor 1 is reporting a temperature of 0°C meanwhile Bank 1 Sensor 2 is reporting an actual reading (134°C).

Having looked online, it appears that some Vauxhall’s don’t have Sensor 1 which is why it’s reporting 0°C, however others have disagreed with this.

Can anyone confirm if this is normal/expected behaviour from Sensor 1? If not, can I diagnose this further or does it need to be replaced?

If anyone has any ideas of how much it’ll cost to get it replaced by a garage please let me know.

Thanks in advance!
 

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Not unusual on the J, typically caused by a software fault.
 
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Not unusual on the J, typically caused by a software fault.
Thanks for the reply. So now that I’ve reset the codes do I have anything to worry about?

I don’t want to reset the codes to find out further down the line that it’s caused long term damage to the engine or other components.
 

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Fairly sure there was a software update for this. Clearly your temperature didn't go from 80° to 130° in just 3 seconds.
Sure someone will be able to confirm but it has come up loads of times on here previously.
 
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There's a bit of checking to be done as well as a possible ecu flash/software update (same thing (y))
they should know all about it as it's a common problem,if not quote the fr number 3160,
imo it should be a warranty job,i doubt they'll wear it on a 2013 motor but if you don't ask etc (y)
 
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There's a bit of checking to be done as well as a possible ecu flash/software update (same thing (y))
they should know all about it as it's a common problem,if not quote the fr number 3160,
imo it should be a warranty job,i doubt they'll wear it on a 2013 motor but if you don't ask etc (y)
Thank you for the prompt response and for clarifying those few points for me!

Is 'field remedy' terminology that a garage would understand? Is there anyway I could check if it would be covered under warranty? With it being quite an old car I would imagine there are no longer any warranty.
 

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A dealer should know the term,have a word with one about a fix and potential warranty before trying any other options like a Vx specialist or indepedent garage
 

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A dealer should know the term,have a word with one about a fix and potential warranty before trying any other options like a Vx specialist or indepedent garage
Great, thanks for your help. I will get in touch with my local dealer and see what they have to say regarding the software update. Thanks again for your help! (y)
 
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