Will a tune void warranty? NO

[mikedahammer]

Uh… what does it mean when the shop is clean but the bathrooms have explosive shit patterns on the toilet and walls behind it?

That there is good mexican food nearby.

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[Boosted Pony]

Actually yes todays ECM's can tell if you have installed a tune, there is a counter in the ECM that keeps track of how many times the ECM has been flashed, it will not tell them what the tune was but they know how many times the ECM should show it was flashed as when it is connected to the dealers scan tool that communicated with the manufacture the number of flashes should match, if the ECM has more flash counts on it then it should that is an indication that there ECM has had a tune flashed to the ECM at some point.

Green Diesel Engineering point blank tells you that if you put their tune on a GM Diesel it will void the GM powertrain warranty because GM will know the ECM has been flashed.

People think they can just reinstall the stock tune and the dealer/manufacture will never know, well in the past you could get away with that but today they have ways to let them know the ECM has been flashed.

So the answer is yes your powertrain warranty can be voided if you flash a tune into the ECM.

 

[dguzzi]

How many key cycles would need to be registered in order to convince them?
I found the most of why the BBB matters is that no business wants to have their business complaints registered there. I got good results from our electric power supplier because I complained. It was immediate and complete.

 

[K4fxd]

Simple go to dealer ask to reflash the ECM with the most current software version.

Add aftermarket tune when you get home.

Blow engine at the track.

Reinstall stock tune

Now the key counts will be close enough.

 

[Longitude Zero]

You were lucky.

 

[LOL WUT]

A possible way around key count issues being too low is to buy a second ECU, copy it off your OEM one, tune the second one, and swap them as needed. However, after an extended time you’ll still end up with cycle discrepancies.

To bring this back on topic, I foresee a “THE DEALER WANTS ME TO PAY WHAT!?” post in the future. But in the event that ford does cover the cost, I 100% don’t think they should. We all assume the risk and consequences when we modify things, there’s absolutely no reason ford should cover the work.

 

[ice445]

Actually yes todays ECM's can tell if you have installed a tune, there is a counter in the ECM that keeps track of how many times the ECM has been flashed, it will not tell them what the tune was but they know how many times the ECM should show it was flashed as when it is connected to the dealers scan tool that communicated with the manufacture the number of flashes should match, if the ECM has more flash counts on it then it should that is an indication that there ECM has had a tune flashed to the ECM at some point.

Green Diesel Engineering point blank tells you that if you put their tune on a GM Diesel it will void the GM powertrain warranty because GM will know the ECM has been flashed.

People think they can just reinstall the stock tune and the dealer/manufacture will never know, well in the past you could get away with that but today they have ways to let them know the ECM has been flashed.

So the answer is yes your powertrain warranty can be voided if you flash a tune into the ECM.

That's not the way Ford does it, they just ensure any write operation resets the key cycle counter. No need for any separate counter. That's what popped OP.

 

[IPOGT]

With my 2016 GT, I did the FP PP2 Kit by my Ford dealer at the time and my warranty both factory and Ford extended were both gloriously preserved while I enjoyed a nice bump in performance and absolutely no unhappy surprises. I’d recommend it. Plus it made my GT look like a Gen 2 version of my M1 when you opened the hood.

 

[WItoTX]

Still waiting to hear what OP was doing when the engine failed.

 

[wingnutt]

Still waiting to hear what OP was doing when the engine failed.

 

[ice445]

Still waiting to hear what OP was doing when the engine failed.

He must have finally gotten the bill so he's probably never coming back

 

[bankyf]

Actually yes todays ECM's can tell if you have installed a tune, there is a counter in the ECM that keeps track of how many times the ECM has been flashed, it will not tell them what the tune was but they know how many times the ECM should show it was flashed as when it is connected to the dealers scan tool that communicated with the manufacture the number of flashes should match, if the ECM has more flash counts on it then it should that is an indication that there ECM has had a tune flashed to the ECM at some point.

Green Diesel Engineering point blank tells you that if you put their tune on a GM Diesel it will void the GM powertrain warranty because GM will know the ECM has been flashed.

People think they can just reinstall the stock tune and the dealer/manufacture will never know, well in the past you could get away with that but today they have ways to let them know the ECM has been flashed.

So the answer is yes your powertrain warranty can be voided if you flash a tune into the ECM.

Who has the capability of reading the "counter" and how do they do it?

 

[lo-fi]

Who has the capability of reading the "counter" and how do they do it?

Ford IDS has access to the ignition event counter.

 

[bankyf]

Ford IDS has access to the ignition event counter.

I understand, but that’s not what I asked. I was referencing the quoted flash counter. Event counter is not conclusive evidence.

 

[ice445]

I understand, but that’s not what I asked. I was referencing the quoted flash counter. Event counter is not conclusive evidence.

As I said in an earlier response, there isn't one. And to be fair, an event counter is absolutely conclusive evidence. Ford doesn't care about why the ECU was written to or how, they just know that factory software was altered in some way. If there's no approved warranty or dealer reason, then that's all they need.

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