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Pre Turbo Temps

Posted: Mon Jun 12, 2017 5:14 pm
by saeb
Can anyone that has monitored exhaust manifold outlet temp in the past give me an indication of what temps I'm looking for?

After spending 10 minutes I already have 10 new pids that are undocumented and it will make it a little easier to find EGT temp.

Possibility that I have found the pre turbo EGT anyway. slowly rising while idling 450 degree and start to go down when engine stopped.

Re: Pre Turbo Temps

Posted: Mon Jun 12, 2017 7:05 pm
by saeb
Seems as though it may just be a different PID for engine coolant temp. Will keep and eye on it as it may be the same temp sensor or a different one. I had a feeling there were 2 on these engines.

Re: Pre Turbo Temps

Posted: Mon Jun 12, 2017 10:32 pm
by saeb
Test and confirmed. It was just an undocumented PID for coolant.

So there are 2 PIDS for engine coolant in the PCM.

Re: Pre Turbo Temps

Posted: Tue Jun 13, 2017 7:36 pm
by Dieselman777
Hello Stewart,

On my MY17 I am seeing anything from ambient temp on start up right up to 600 degrees during a long uphill run. Idle normally sits at 150-200 degrees

I can see pre and post cat temps on the MY17 using the OBDLink app and MX Link dongle

Re: Pre Turbo Temps

Posted: Tue Jun 13, 2017 7:41 pm
by saeb
Dieselman777 wrote: Tue Jun 13, 2017 7:36 pm Hello Stewart,

On my MY17 I am seeing anything from ambient temp on start up right up to 600 degrees during a long uphill run. Idle normally sits at 150-200 degrees

I can see pre and post cat temps on the MY17 using the OBDLink app and MX Link dongle
What PID are you using for Pre Turbo?
I assume you mean Pre/Post DPF?
Are you using the Post DPF PID I put up here?

Re: Pre Turbo Temps

Posted: Tue Jun 13, 2017 8:06 pm
by Dieselman777
I am using the SAE PID in the OBDLink app "Exhaust gas temp bank 1, sensor 1"

I assume this would be pre-DPF/post turbo. I have been also getting different readings using "Catalyst temp (Bank 1 Sensor 1)" and "Catalyst temp (Bank 1 Sensor 1)"

I will see if I can get a log for you on the drive to Melb tomorrow morning


Ben

Re: Pre Turbo Temps

Posted: Tue Jun 13, 2017 8:12 pm
by saeb
I will PM you a PID post DPF. See how this compares to your other reading as we know its spot on.

I will look further into SAE PID and see what happens.