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Cobb Stage 3 Mods - with No AccessPort (stock maps)

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Cupertino
#1
Lets assume you've upgraded to a full stage 3.
Intake, downpipe (catted), exhaust, FMIC, etc.

You have been running a Stage 3 map, and now its time to head over to the dealer to get serviced....
You "uninstall" the Stage 3 map, and return the ECU to the factory map.

What happens? How does it run? Does the ECU throw an error?
I think I read somewhere on the forum that if you've replaced the downpipe, the ECU won't know to handle the extra flow out of the turbo, and will complain.

If you have only gone as far as Stage 2 (stock downpipes and exhaust), what happens when you go back to the stock ECU Map?

I'm curious how much I'd have to "uninstall" (everything?) to be able to run the stock ECU and stock Map without the ECU throwing an error.
If I want to service the car, or sell the car at some point (gasp), I'd like to know how many of the original parts I'd need to save and reinstall.

Thanks!
 


rodmoe

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#2
I Would guess it would run ok if you take it easy and stay out of the boost. You may however throw a code like P0420 for cat eff something somthing.. at least that is what I have seen when I was running a catted DP till stage 3 removed that code. I could clear it and drive a few hundred miles at times without seeing the code but it came back eventually..
 


CanadianST

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#3
As stated above you'll throw a CAT code with the downpipe (at least the COBB) but driveability should be fine. You'll just not see the maximum gains from the mods.
 


Hijinx

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#4
Keep the AP with you just in case you get a cat code before you go in for service.
 


OP
G
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Location
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Thread Starter #5
Thanks for the tip, keeping the Accessport with me is a good tip.
I think I'll plan on keeping the Stock DP in storage, so I can go back to a Stock ECU friendly state when I eventually sell the car.
 


Young L

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#6
they are probably going to assume the ecu has been messed with just looking at the car and seeing the mods.
 


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Kyle
#7
they are probably going to assume the ecu has been messed with just looking at the car and seeing the mods.
This. And it depends on the service you are getting whether they are going to care or not.
 


BlueBomber

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#8
Lets assume you've upgraded to a full stage 3.
Intake, downpipe (catted), exhaust, FMIC, etc.

You have been running a Stage 3 map, and now its time to head over to the dealer to get serviced....
You "uninstall" the Stage 3 map, and return the ECU to the factory map.

What happens? How does it run? Does the ECU throw an error?
I think I read somewhere on the forum that if you've replaced the downpipe, the ECU won't know to handle the extra flow out of the turbo, and will complain.

If you have only gone as far as Stage 2 (stock downpipes and exhaust), what happens when you go back to the stock ECU Map?

I'm curious how much I'd have to "uninstall" (everything?) to be able to run the stock ECU and stock Map without the ECU throwing an error.
If I want to service the car, or sell the car at some point (gasp), I'd like to know how many of the original parts I'd need to save and reinstall.

Thanks!
I have this hardware as well, and honestly I just uninstall my tune and don't say anything, and the car runs just fine but will throw a PO420 (O2 sensor code) within a few miles (appx 20) but otherwise does not care.

The Ford techs at Ken Grody don't really give a shit what I've done as long as it's a) not jerry-rigged garbage on something important b) no turbo swap or internals or cams
As long as it's bolt ons you're pretty much in the clear

I don't like BOV spacers or wastegate mods though as I think that would make turbo warranty stuff suspect.

I always get it back from them before the car has a chance to throw a CEL code anyway.
 


Messages
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Location
Chicago
#9
they are probably going to assume the ecu has been messed with just looking at the car and seeing the mods.
This. And it depends on the service you are getting whether they are going to care or not.

It doesn't matter. They can assume all they want, but they have no actual proof the ECU has been messed with other than "Ghost Codes" showing. If they make any sort of stink about your car and refuse any service, just kindly ask to talk to the manager, if they don't agree to give you service, talk to his/her manager, etc. Just become enough of a headache to where they will do the service just to keep their advil supply in check.

As for the running full bolt ons with no tune, the car will drive perfectly fine. I had removed my tune for a while and was running around with a full TBE. The engine light didn't come on for about 20-30 miles, so you will be safe.
 


CanadianST

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#10
I ran into the problem with just seeing the mods when i was there grabbing some touch up paint. One of the techs seen the car out front when i pulled in said "just a heads up but your warranty is probably gone." He noticed the intercooler and heard the intake and exhaust, even knew exactly what the accessport was too. All depends on whos working
 


Young L

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#11
It doesn't matter. They can assume all they want, but they have no actual proof the ECU has been messed with other than "Ghost Codes" showing. If they make any sort of stink about your car and refuse any service, just kindly ask to talk to the manager, if they don't agree to give you service, talk to his/her manager, etc. Just become enough of a headache to where they will do the service just to keep their advil supply in check.

As for the running full bolt ons with no tune, the car will drive perfectly fine. I had removed my tune for a while and was running around with a full TBE. The engine light didn't come on for about 20-30 miles, so you will be safe.
but at the same time you are creating a problem. We all got brand new cars that we started modifying AGAINST what the manufacture says. The dealer has the right to not warranty the work because they could lose the franchise rights if they claim repairs on modified parts. I cant go to the dealer complaining about surface rust on my T409 MBRP exhaust having known what it will do that and expect Ford to cover it. Really all you are suggesting is to complain until you get what you want.
 


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#12
Really all you are suggesting is to complain until you get what you want.

Sure. In the simplest form I am saying that. Why? Because it works. It worked like a charm on the BMW dealerships when dealing with N54/N55 engines and it will do the same with Ford. I guarantee it.


And if a dealership makes a big deal about having installed an intake and exhaust, you should rightfully go tell them to fuck themselves. Seriously. Those are the simplest breather mods on the planet. I can't tell you how many other cars I've owned and my friends have owned, where the dealership and dealer techs have said it's ok to have basic bolt-ons, just no reflash software or internal work done.

I can't believe we are even still debating this. It's like 95% of this forum is brand new to working on cars.
 


Young L

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#13
Sure. In the simplest form I am saying that. Why? Because it works. It worked like a charm on the BMW dealerships when dealing with N54/N55 engines and it will do the same with Ford. I guarantee it.


And if a dealership makes a big deal about having installed an intake and exhaust, you should rightfully go tell them to fuck themselves. Seriously. Those are the simplest breather mods on the planet. I can't tell you how many other cars I've owned and my friends have owned, where the dealership and dealer techs have said it's ok to have basic bolt-ons, just no reflash software or internal work done.

I can't believe we are even still debating this. It's like 95% of this forum is brand new to working on cars.

And there in-lies the one of the problems with people today. Let me bitch moan and complain about some shit I know I did was wrong but did anyway. Yes doing an intake/exhaust for example is easy, BUT the manufacture says not to do it or you void the warranty. You think Ford is gonna replace a motor because someone hydro-locked it because they modified the intake?
 


Hijinx

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#14
Sure. In the simplest form I am saying that. Why? Because it works. It worked like a charm on the BMW dealerships when dealing with N54/N55 engines and it will do the same with Ford. I guarantee it.


And if a dealership makes a big deal about having installed an intake and exhaust, you should rightfully go tell them to fuck themselves. Seriously. Those are the simplest breather mods on the planet. I can't tell you how many other cars I've owned and my friends have owned, where the dealership and dealer techs have said it's ok to have basic bolt-ons, just no reflash software or internal work done.

I can't believe we are even still debating this. It's like 95% of this forum is brand new to working on cars.
Do you become outraged when you get a speeding ticket?
 


BlueBomber

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#16
And there in-lies the one of the problems with people today. Let me bitch moan and complain about some shit I know I did was wrong but did anyway. Yes doing an intake/exhaust for example is easy, BUT the manufacture says not to do it or you void the warranty. You think Ford is gonna replace a motor because someone hydro-locked it because they modified the intake?
I guess noone saw the article titled "Ford Racing really wants you to mod EcoBoost engines" - where was that again? OH, ROAD AND TRACK
http://www.roadandtrack.com/car-cul...ing-really-wants-you-to-mod-ecoboost-engines/

and then there's the fact that Jesse Kershaw of Ford Racing is telling you "It's OK, Mod! have fun"

Beyond this, here's something you are totally neglecting in your argument that flies in the face of the Magnusson Moss Warranty Act, which SAYS IT IS ILLEGAL FOR THE DEALER TO CLAIM YOUR WARRANTY IS VOIDED BY FMIC, INTAKE, EXHAUST ETC - THE DEALER MUST PROVE THAT ANY AFTERMARKET PART CAUSED THE FAILURE - look it up.

But what's more upsetting, is you're neglecting the fact that WE SPECIFICALLY HAVE AFTERMARKET PARTS MANUFACTURERS HERE ON THIS FRIGGIN FORUM THAT ARE 100% WARRANTY APPROVED AND 100% FORD WARRANTY COMPLIANT - you know- MOUNTUNE ?!? EG- YOU INSTALL ANY MOUNTUNE PART AND IT IS IMPOSSIBLE FOR YOUR WARRANTY TO BE VOIDED FOR IT. END OF STORY. THAT IS THE HARD FACT OF IT. ARGUE ALL YOU WANT, 100% WARRANTY OK AND CANNOT BE VOIDED FOR IT.

ugh.

so that also addresses the often asked question "how come mountune parts are kind of expensive / how come the gains are kind of conservative?" because it's warranty compliant and people don't seem to understand that what you're paying for is the peace of mind that under no circumstances can the mod you're about to install possibly void your warranty

god I cannot believe that you're being so boneheaded about it
 


BlueBomber

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#17
Do you become outraged when you get a speeding ticket?
I am always angry when I get a ticket, but that's a completely different story and has more to do with my stance that it's about revenue generation not safety - and the fact that all departments lie and say "there's no quota", when there is a quota, just it's explained as performance rated in "percentages". it's a "don't-call-it-a-quota-but-its-a-quota".

then there's the fact that if your fine is like $150, you then pay like $400 in "court fees". it's the greatest extortion racket since the mafia invented 'protection money'.
 


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