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Old 04-14-2011, 07:32 PM   #1
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ECU Tuning & Emissions?

I live in the state of NewHampshire where they plug a reader into your diagnostics port for emissions.
I want to SCT tune my Ecu for an OBX header I bought and it has 1 oxygen sensor spot and no EGR spot, so I will have to delete the 2 rear sensors, the EGR system and the PZEV air pump system.
My question is.. Will or can the states computer detect any changes, or does it just scan the ECU for any error codes??? I know it wont pass a visual check because there will only be 1 oxygen sensor =).
This is very important as I don't have a bunch of $$$$ to throw @ somthing that won't pass the computer test.....
Is there anyone ealse that has dealt with this?


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Old 04-14-2011, 08:22 PM   #2
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Its very hard to say some pass some do not

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Old 04-14-2011, 08:34 PM   #3
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I'm no so sure how agressive the emmission standerds are over there but what i think is just try it and if you dont pass do it under the tablw thats what I do and all my friends do. Because a turbo or even just tuning my car on California i would not pass smog check.
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Old 04-14-2011, 08:52 PM   #4
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anyone know how to fix a tripped ecu. i was hooking up my sct flasher and tripped. anything i can do to get a custome tune on the ecu and get it reset.
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Old 04-14-2011, 08:53 PM   #5
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I guess i'll have to tune the ecu and see
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Old 04-18-2011, 10:31 AM   #6
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Emmissions

Quote:
Originally Posted by mattyix View Post
I live in the state of NewHampshire where they plug a reader into your diagnostics port for emissions.
I want to SCT tune my Ecu for an OBX header I bought and it has 1 oxygen sensor spot and no EGR spot, so I will have to delete the 2 rear sensors, the EGR system and the PZEV air pump system.
My question is.. Will or can the states computer detect any changes, or does it just scan the ECU for any error codes??? I know it wont pass a visual check because there will only be 1 oxygen sensor =).
This is very important as I don't have a bunch of $$$$ to throw @ somthing that won't pass the computer test.....
Is there anyone ealse that has dealt with this?
OK, let's say mattyix scanned his car, to say turn off the EGR. Would the emmission's people know or read, that the EGR was turned off & can they read, that there is a tune in the ecu, or not?
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Old 04-18-2011, 03:00 PM   #7
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Come Inspection shops can see the EGR is turned off it will say "Readiness not complete " for the EGR and some pass with it turned off and say nothing

No inspection place can see you have a tune

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Old 04-24-2011, 06:46 PM   #8
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It depends where you go. Tom is right, they can't see the tune. Their checking for DTC codes in your ECU.

I have ran Hypertech on trucks before without issue and they pass smog. I have even told the local smog shop I had a CAI on my old Neon and it had a CARB label. Tech said he didn't care, as long as it passed the sniffer. On my Jeep it passed with flying colors, I have a CAI, and bigger injectors, etc. Tech said again (different time) he didn't care as long as it passes the sniffer.

Honestly, this is how it should be. If it passes the sniffer, who cares.
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Old 04-27-2011, 09:36 AM   #9
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Thanks guys, I'm ordering the tuner this week and we will see if it passes and what not.
Just out of curiosity, what can my stock duratec handle safely for boost Tom? I have looked at many threads and everybody seems to throw out different numbers.
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Old 04-27-2011, 09:51 AM   #10
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Yeah that's a very sensetive area to touch since many people throw different numbers but what I do know is that people throw the stage 2 turbo charger from fswerks with 11 psi without any problem . So I probably wouldn't go any higher without internals.
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