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Agree with all your comments except the one highlighted. There is no tune “which leaves 0 traces of a tune”. If you have issues and the ECU software is downloaded and sent to PAG, Porsche will see the tune and deny your warranty. This just happened to a RL member who reported it here within the last 30 days by an owner of a used 992 with factory cats but a catless ECU tune. PAG caught it and denied warranty coverage. Charles at M Engineering saved the day by providing the owner with a factory tune matching the factory cats. Great work Charles!
I have never seen a representation by any ECU tuner anywhere that the fact the car was previously tuned is somehow not discoverable even after an uninstall. Software is designed to log or record all modifications and changes. Ask any software engineer or Charles. So, there is a risk.
I believe his car had the tune on, not reverted back to stock.
Originally Posted by Ecoish
this is the link. FYI, it was a really tight fit to work on without removing the exhaust. Mine called for the 4 pin, you will have to see what yours is. Their Amazon store is very helpful.
Would love to try something like this.
Originally Posted by zanary
I may be confused by "used 992 with factory cats but a catless ECU tune. PAG caught it and denied warranty coverage.". They caught the tune because the catless ECU tune was still in the ECU when they took a copy, right? If you use the M-Engineering UNINSTALL file that they give you, it returns it back to factory, and also reset the counter so wouldn't that have removed the carless ECU tune and returned it back to factory?
Maybe @M Engineering can provide more details on what is an Uninstall file that they provide and if it is truly uninstalls any M-CODER or M-TUNER file and reset the counter.
That’s not true at all. The car will read: flash count = 0 for unmodded and at least flash count = 2 for modded and then flashed back to “stock” with the “stock” save data.
lots of meta data is saved.
So what really matters is how **** your dealer is.
Any time you even get an oil change, your car “phones home” so at any time the manufacturer is aware as well. It’s a matter of “does this even matter” and as long as it’s not some complicated warranty issue, the answer is no.… but it is technically visible that the stock software has at the least been previously overwritten.
Here is a response from Charles from @M Engineering ... Sounds like your definition may be incorrect when it comes to the M-Engineering uninstall...
I installed it about a month ago. It was working fine for about a month and all of a sudden it’s back to normal meaning the valves even if I hit open or close it won’t open up past 5000 RPMs there’s something wrong with my module. Or my exhaust valves? Anyone else experience this
I installed it about a month ago. It was working fine for about a month and all of a sudden it’s back to normal meaning the valves even if I hit open or close it won’t open up past 5000 RPMs there’s something wrong with my module. Or my exhaust valves? Anyone else experience this
Best way to find out would be uninstalling the module and see how your valves react. Are you getting a CEL?
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