Emission Testing

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jimy
Posts: 4
Joined: Tue Nov 20, 2012 10:22 pm

Emission Testing

Post by jimy »

My '06 Mustang GT with CAI and Steeda tune could not be tested for emissions as the O2 sensors and Catalyst Monitors had NOT READY readings. There were no scan codes or warning lights. Was advised to re-establish the 'drive cycle'. Followed Factory instructions for setting the 'drive cycle' several times w/o success...still got NOT READY readings. Reverted to factory tune did the 'drive cycle' thing again and passed. My question is: does inTune include a canned CAI tune that will pass emissions for my 4.6L V8 or do I have to reinstall the factory tune before emission testing to be sure?? Thanks, Jimy
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Mike_Levy
Posts: 6715
Joined: Fri Oct 26, 2007 8:11 pm
Location: Between Orlando and Tampa

Re: Emission Testing

Post by Mike_Levy »

O2s are turned off. No idea why or how.
2021 BMW M550i xDrive
BMC Drop ins, JB4

2010 Nissan Murano beater
K&N Drop-in
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mikel
Posts: 58747
Joined: Tue Jan 16, 2007 1:17 pm
Location: DiabloSport World Headquarters
Contact:

Re: Emission Testing

Post by mikel »

load the tune back to the car then post a copy of the last tune written so I can check it out.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
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fordfan1964
Posts: 19
Joined: Sat Nov 03, 2007 10:51 pm

Re: Emission Testing

Post by fordfan1964 »

any resolution to this? I am having the same issue, except I havent installed stock tune or stock intake nor passed emissions yet.
Drfy1
Posts: 1
Joined: Mon Aug 24, 2026 6:33 pm

Re: Emission Testing

Post by Drfy1 »

Similar issue 2014 challenger rt 5.7L:
All my drive cycles ok except for EGR reading not ready. Car will pass smog but CA wont pass if any cycle is not ready. Im aware my car does not have an EGR.
Details:
Cam upgrade from MMX(NA Lope Cam), new lifters,rods,springs, head gaskets, and used hellcat exhaust manifold. 3"catback exhaust. DS i3intune used to tune but EGR still not ready. Car runs and all. Car will not run if i restore original tune due to cam upgrade. What, if any, are my options to get the Egr drive cycle to complete? Can a tune be written to keep the certain parameters so my pcm is able to "ready" my imaginary EGR?
Thnks,
Drfy1
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