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Old 05-04-2012, 10:05 PM   #121
darkangelism
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Oh well. Tuning voids your warranty even if nothing goes wrong with the car so ill just deal with it until a tune is available. My afr isn't that bad even at wot.

Off to explore more modifications and with exploring you find other issues. I don't think anything is going to happen anyways.
yeah the only surefire thing to do is to stay stock.
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Old 05-04-2012, 10:08 PM   #122
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Just because I am your tuner If I say something you dont agree with I would hope you would speek up , This isnt personal and I dont take anything here that way unless its an attack on me or my buisness

I have had many customers over the years I have wrote letters to Ford about the mods on there cars could not of done the damage the car was in the for , not one time did it do any good and the customer had to foot the bill or tow it out of there

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Old 05-04-2012, 10:14 PM   #123
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Does OBD data show A/F ratio?
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Old 05-04-2012, 10:16 PM   #124
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In fairness to Ford and the other car makers, when you modify the car to increase performance the odds are high that you will be pushing the car harder than the average customer and the car maker doesn't feel as though they need to stand behind someone else's work.

I can also imagine that it you bring your car in or it's towed in because of a problem that the first thing they do is hook up to the OBDII port and look to see what you been doing with the car. What do you think Ford would do if your engine is blown and the last thing they see in the data is high speed driving and revs to redline over and over AND there are mods to the engine!

I know I wouldn't cover that if I were in charge...

If you make those kinds of mods expect that your warranty ended when you modded the car!


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Old 05-04-2012, 10:20 PM   #125
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In fairness to Ford and the other car makers, when you modify the car to increase performance the odds are high that you will be pushing the car harder than the average customer and the car maker doesn't feel as though they need to stand behind someone else's work.

I can also imagine that it you bring your car in or it's towed in because of a problem that the first thing they do is hook up to the OBDII port and look to see what you been doing with the car. What do you think Ford would do if your engine is blown and the last thing they see in the data is high speed driving and revs to redline over and over AND there are mods to the engine!

I know I wouldn't cover that if I were in charge...

If you make those kinds of mods expect that your warranty ended when you modded the car!


Brian
Agreed. A lot of people complain about this idea of manufacturers voiding warranties on modded cars, but look at it from their perspective. They designed the vehicle to run within certain parameters - if you push the envelope performance-wise, why should they be responsible for resulting damage? They sold and warranted a road car, not a race car. That's just the way it is.
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Old 05-04-2012, 11:00 PM   #126
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Just because I am your tuner If I say something you dont agree with I would hope you would speek up , This isnt personal and I dont take anything here that way unless its an attack on me or my buisness


Tom
I like that attitude, once tuning options become available you will have my business.
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Old 05-04-2012, 11:07 PM   #127
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^^^ agreed, He's Tom, old school, contributing member here. He does know his shit and has me paranoid now . . .
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Old 05-04-2012, 11:14 PM   #128
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^^^ agreed, He's Tom, old school, contributing member here. He does know his shit and has me paranoid now . . .
yeah i know he does. I know just enough to be dangerous, and want to learn more. I will have to check my a/f numbers when I dyno. I will probably be doing stock and intake, so i have a comparison and see how much leaner the steeda runs.
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Old 05-05-2012, 12:12 AM   #129
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Does OBD data show A/F ratio?
Yes and no , in closed loop the o2 gives the reading of the AF to the ECU , the ECU takes this info and if the targeted closed loop A/F (14.64) is correct the ECU makes changes to hit that target as close as it can , it goes above 14.64 sees its to lean so adds fuel to below 14.64 then sees it rich and back and forth

Open loop no longer looks at the AF with an o2 sensor and just goes the a Open Loop Base fuel table that tells the ECU what AF it wants , doesnt mean thats what AF you acually see there are a lot of factors that go into the mix that calculates the final AF

To answer your question in Open Loop where AF is needed (only time a wide band AF gauge is needed) no the OBDII port will not show you AF

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Old 05-05-2012, 12:17 AM   #130
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Originally Posted by raptor1956 View Post
I can also imagine that it you bring your car in or it's towed in because of a problem that the first thing they do is hook up to the OBDII port and look to see what you been doing with the car. What do you think Ford would do if your engine is blown and the last thing they see in the data is high speed driving and revs to redline over and over AND there are mods to the engine!


Brian
I have not yet been able to confirm that Ford will be able to see what revs , speeds , tunes loaded etc that the engine has been to , I know that up to 2011 in the Focus they have not been able to tell this any of this info , I have not been into the new 2012 ECU much yet

Tom
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