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Its part of the emissions control. You need to complete the Training course = Compliance & Emissions training. Once completed go to the Parameter Access to obtain Device Code which will unlock READ...

@Makeclick
I've been running the tune for a week now and its defiantly better.
Boost is higher and drivability is excellent.
Log for 3rd gear pull.
123432

Log for Race Start.
123433
There is...

Thanks for the help guys.

@chevota, Epic write up and appreciate the level of detail. I reviewed the tune you supplied. There was some items i wouldnt touch but "Sent It" anyways. Here is the 3rd...

Im thinking it might be related to the TCM limiting the torque.
Current tune and log file attached along with stock file.
122770
122771
122772
Any help would be much appreciated.
:banghead:

They are one hell of an engine! the same in a 4.6 would be next level.
Only have bank 1. and secondary 1. No bank 2 or secondary 2.
Power enrich worked a treat. Very happy with where the fuel is....

Yes. Bank 1, secondary fuel and exhaust temps. Also the power enrichment.
From the testing I conducted, all 4 need to be changed to produce the required results.

Thank you for the info and agree on everything you stated. I too was very surprised to see how lean they run. Whilst it does the job for EPA and economy, i want some safety margin before turning...

Hi Gurus,

Hoping someone can help me with understanding how to tune Fuel for my 2015 GLA45 AMG.
Do I update Temperature Control > Target Lambda?
- I'm guessing there would be activators and...

The 2018 CLA 45 AMG is supported.