PCM Question

[Woppy V]

does the pcm keep a diagnosis of the amount of air and fuel recently used?



Or, in other words, can a dealership plug into the computer and determine whether or not I have been running a custom tune on my trac/aftermarket parts.



ty.

 

[Woppy V]

bump.



anyone?

 

[Kevin Palmer]

If I understand correctly, the data for air and fuel mixture goes to DEFAULT when the power to the PCM has been removed for more than a momentary time.



So, if you remove the terminal and let it sit for 30 minutes, it will go back to default...

 

[Woppy V]

thats the info I was looking for Coastie. I have to take my trac back in for yet another trannsmission problem but my warranty would be void if they found an data indicating I had an aftermarket intake or custom tune installed. Thats why I was wondering if they would be able to pull anything from the computer regarding the air/fuel mixtures etc.

 

[TrainTrac]

They might be able to void the warranty for the custom tune, but attempting to void it because of your intake is BS. The Magnuson-Moss Act prevents them from doing this.

 

[Woppy V]

I've flashed it back to stock and have run it for a couple days now after having disconnected the battery... I feel pretty confident that I have covered all the bases and will be able to resolve this rather readily with ford.

 

[Torrie McPhail]

Your fine doing what you did ! W v



Take care,

Mr. Torrie R. McPhail - (Owner)

http://www.FastPartsNetwork.com

http://www.UnleashedTuning.com

Ford/GM/Dodge/Chrysler/Jeep SCT Custom Calibrator

 

[Woppy V]

thanks torrie!

 

[Torrie McPhail]

NP! Oh and if anyone has questions regarding stuff like this Please email me and I'll help out





[email protected]



Take care,

Mr. Torrie R. McPhail - (Owner)

http://www.FastPartsNetwork.com

http://www.UnleashedTuning.com

Ford/GM/Dodge/Chrysler/Jeep SCT Custom Calibrator

 

[Tom Schindler]

The Magnuson-Moss Act prevents them from doing this.

Wrong. The M-M act says that you are not required to buy replacement parts from only the dealer. So, if the air filter gets clogged, you are not required to buy a motorcraft filter to keep your warranty. You can buy any filter you want, as long as it is built to OE Specs.



If they say the Purolator filter you used is causing a problem, they must proove it. Removing the airbox and replacing it with an intake like a K&N is not replacing the OE part with a like item.



On the other hand, if you put a supercharger on your engine, and the radio quitsw working, thewy can void the warranty on the engine, tranny, driveshaft, and rear differential, but they must fix the radio...or must prove the Supercharger caused the radio to fail.



The M-M Warranty Act does not give you a green light to do whatever you want to your vehicle. You are not required to run OE parts when you need to replace it. Alternator goes bad, you can put any brand of alternator that is a direct replacement for it. Plugs, and brand you like. Wires, air filter, fuel filter, shocks, springs, etc. as long as they meet or exceed OE specifications.





Tom

 

[Bill Barber]

Caymen is correct.

The MM act is so overated and tottaly misunderstood, it offers very little if any protection to those that Mod.

Besides, if one was to claim the MM act, in a claim for warranty work, you will be reffered to fords legal dept.

They in turn will tell you to have your Lawyer contact them with a written formal legal document.

None of our STs is worth a fraction of what it would cost to go to war with ford.