U7146 04 Mustang GT

[04GTNNC]

I have a O/R H pipe and have bee running diablo tune for several months now and everything was great, I installed BBK CAI and now my Wideband AFR will go rich (11.2-11. at part throttle and then shortly after Engine light comes on, and then AFR returns to 14.7. When i check for codes, only one i get is OBD II readiness incomplete. Is there somthing i need to do for the CAI? Why does the engine light come on but show no code? Do i need custom tune?

[Shaken]

http://www.obdii.com/drivecycleford.html I did a google for OBD II readiness incomplete 04 mustang and came up with that. I assume you turned off you rear o2 sensors and maybe your egr. From the manual " OBDII EGR = Turn EGR on/off, ONLY USE WHEN REMOVING THE EGR
To Set OBD-II setting for no rear 02’s -Turn all of the following parameters to “OFFâ€

[04GTNNC]

According to the post, im gonna need to get some MIL eliminators to pass inspection. But did you get any codes when you installed your CAI? How did you know to adjust your WOT fuel to +1.5, I leaned up alittle on 2k-4k this morning and i have had no problems so far. You have 10% on timing! did that help?

[Shaken]

You can turn off rear o2 sensors with the Predator. No Codes on CAI I would check for a vacuum leak, pcv, loose clamp really anthing after the maf. Data logging with my lc1 and data logging gauge and laptop. timing ou can data log with Predator to see timing is being pulled I use 94 octane fuel. Also checking you plugs for evidence of detonation which I did yesterday when I changed them after my timing data log session. Goolge is your friend but you have to search through the junk. Car runs great.

[04GTNNC]

I had the 02 sensors turned off, but i gotta get this pony inspected! It will not pass obd II with the tune installed! what did you do when you had yours inspected?

[Shaken]

I dont have to where I live when I do I will either buy cats or put my factory h pipe back on.