Tune that deletes rear o2's? - Ford Mustang Forum
 
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post #1 of 8 (permalink) Old 01-16-2016 Thread Starter
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Tune that deletes rear o2's?

Hey guys I'm looking to get a tune done on a 2014 mustang gt. It has a cold air intake and full exhaust with an x pipe and cat delete. What's the cheapest or best bang for the buck tune I can get for it to delete the CEL from the no cats to pass a NYS "plug in" inspection (it won't be a problem to pass the visual since I know the shop owner)? In my other vehicles I would either go the defoulers route or have the custom tune delete the rear o2's. Thanks guys. The mustang is a new platform to me.

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post #2 of 8 (permalink) Old 01-17-2016
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As I understand it, you cannot pass the "plug in" inspection with the O2's turned off; because the inspection checks to make sure that nothing is turned off and everything is working correctly / no error codes. You have to go the defouler route, or some other way to make the O2's show "ready" and giving correct signal.


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post #3 of 8 (permalink) Old 01-17-2016 Thread Starter
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I believe in NY you can have 1 out of the 5 stages of readiness "not ready". This is probably how my silverado SS and Audi S4 are tuned. My 2001 wrangler TJ didn't have a tuner to get rid of the O2 CEL and the defoulers didn't work on that since I had the ******* "California" engine in it for some reason so I had to splice a 02 simulator resistor into the wiring harness of the ECU. I do not want to go this route with the mustang since its so new. What tune would you guys recommend for the money. Car has basic aftermarket bolt ons. Thanks in advance.
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post #4 of 8 (permalink) Old 01-17-2016
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You won't be able to turn off your rear o2's and pass emissions in NY. You're only allowed one N/A readiness code and you'll have two.

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post #5 of 8 (permalink) Old 01-17-2016
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Why not just put the cats back on? You'll lose maybe 5hp. With 400+ on tap, I don't think you'll miss it.

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post #6 of 8 (permalink) Old 01-17-2016 Thread Starter
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I guess I'll have to put the cats back on. I just don't understand how my Audi and Silverado both have tunes to delete the rear o2's and they pass inspection every year...
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post #7 of 8 (permalink) Old 01-17-2016 Thread Starter
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If I just piggy back the MIL eliminators into the rear 02's would that be able to pass the plug in part of the inspection? I'd rather keep cats off as long as I can pass with inspection.
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post #8 of 8 (permalink) Old 01-18-2016
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There are some other threads on here about this exact topic . . . . I don't want to mis-quote them, hopefully you can find them with some searches. Might be on some of the other sub-forums.

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