Readiness code
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#11
I got everything to pass except for 02 sensor(not ready). No faults in the system. Is there a certain trick to getting this to pass- I drove for about 20 miles and I got nothin. EGR passed, Heated 02 passed, evap passed, cat passed(even though I don't have one). I installed the rear 02 subroutine patch- that was the only way to get it to read at all. I have the rear o2 enabled under mods. My periphery0 hex is 54DA. My periphery00 hex is 5650.
Last edited by lan_evo_mr9; Oct 25, 2008 at 09:29 AM.
#12
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I had the same issue. I ended up having to put a stock MAP and stock rom back in and everything passed within 5 mins of driving. I wish we had the ability to force all the rediness codes like the subaru guys do.
#14
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The rear O2 should pass with flying colors as long as the rear O2 heater check periphery bit has not been disabled.
Very strange about front O2 not showing readiness. There is no connection between the JDM MAP mods and the front O2 sensor. With the discussion we are having by PM, I'm kinda wondering if perhaps the ROM that you're using is slightly buggered. I had it happen to me once before. The car would run pretty normal except when I got on it, and then it wouldn't go near the boost target. I reflashed with a clean ROM, and all was good.
Very strange about front O2 not showing readiness. There is no connection between the JDM MAP mods and the front O2 sensor. With the discussion we are having by PM, I'm kinda wondering if perhaps the ROM that you're using is slightly buggered. I had it happen to me once before. The car would run pretty normal except when I got on it, and then it wouldn't go near the boost target. I reflashed with a clean ROM, and all was good.
#15
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It was my impression that the ECU looked at the front O2 signal during certain MAP pressure levels. This was the only thing I changed and a few days later I passed my emissions test. I don't understand it fully myself.