Cat Sensor and Tuner
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Elder User
Joined: Aug 2007
Posts: 571
Likes: 1
Yea , I hear that. Problem I got is since the cat has been removed, the dealer pretty much is stating that they cannot properly debug an issue until everything has been returned to stock under warranty. Makes sense I guess.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
Originally Posted by FORDSDOWNER
Dealer told me that having the cat removed could void manufacture 100,000/5 year warranty.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
To my knowledge it doesn't unless it has some other means that I'm not thinking about that it can(now I'm not a mechanic so I could very well be wrong about that, but if it does I would think that it would have set off some codes with a couple of rich tunes that I've run on it), now I'm thinking with the 08s it will have that ability.
Senior User
Joined: Aug 2003
Posts: 438
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From: Colorado Springs
Diesel's don't try to detect a rich/lean condition. They are lean by default and just add fuel. The computer tells it how much fuel and duration based on other variables. This is also why it is so important to match your induction system with your fueling needs. Too much fuel and not enough boost(O2) and you get smoke. Too much boost and not enough fuel and you're just down on power.
Mark
Mark
Former Vendor
Joined: Mar 2004
Posts: 4,362
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From: Hendersonville, NC
4x4Mark has this one covered.
There is no electronic monitoring configuration system on the 6.0 for catalyst monitoring. All air/fuel ratios are calculated by the Mass Fuel, Mass Air, and inferred volumetric efficiency parameters of the PCM.
There is no electronic monitoring configuration system on the 6.0 for catalyst monitoring. All air/fuel ratios are calculated by the Mass Fuel, Mass Air, and inferred volumetric efficiency parameters of the PCM.
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Elder User
Joined: Aug 2007
Posts: 571
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Originally Posted by 4x4Mark
Diesel's don't try to detect a rich/lean condition. They are lean by default and just add fuel. The computer tells it how much fuel and duration based on other variables. This is also why it is so important to match your induction system with your fueling needs. Too much fuel and not enough boost(O2) and you get smoke. Too much boost and not enough fuel and you're just down on power.
Mark
Mark
Senior User
Joined: Aug 2003
Posts: 438
Likes: 0
From: Colorado Springs
Your induction - variable geometry turbo (VGT) -is controlled by various inputs that Matt referenced, in to exhaust back pressure (EBP) on some models. If anything is not functioning properly, you can have problems. The EBP sensor has been removed from the equation on certain model years with a recall and those values then get inferred from other parameters. If any of the sensors are not ready properly, or your VGT is not adjusting properly, problems can occur.
Mark
Mark