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02-10-2018, 05:49 PM | #29 | |
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The stage 2 doesn't disable the cel...
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I've been running it without the cel disabled for probably a month and haven't gotten the P0420 once. Jaden |
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02-10-2018, 08:52 PM | #30 |
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I have alot of experience with romraider and when I've modified stage 2 OFH as well as Stage 2 93 and 91 octane tunes for my cal ID and P0420 has always been disabled. I'd like to see the tune files you are referring too for reference I'm very curious, it has little to do with the transmission.
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02-11-2018, 12:53 AM | #31 | |
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you're right...
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Jaden |
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02-11-2018, 02:10 AM | #32 | |
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02-11-2018, 01:57 PM | #33 | |
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Last edited by FRSBRZGT86FAN; 02-11-2018 at 05:14 PM. |
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02-11-2018, 07:01 PM | #34 | ||
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you wont get a pass on readiness checks if you have disabled the P0420 code. disabling code stops CEL on dash. Readyness checks for catylist require ecu to compare reading from front and rear 02 sensors and confirm the readings are within tolerance. My understanding is that disabling the associated codes stop readiness from showing pass. you can try just re-enabling code (P0420) some headers wont throw cel for a while and may allow readiness to pass, you can also try putting spacer in REAR 02 sensor as well as re-enabling P0420 and see if that helps |
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02-11-2018, 08:16 PM | #35 | |
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02-11-2018, 08:33 PM | #36 | |
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It possible it will get the correct results from readiness if the rear 02 sensor is still in place, if you have a flex kit and its removed/repurposed then their is no chance |
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02-11-2018, 11:31 PM | #37 | |
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Both of my o2 sensors are in position, as well as me not having flex fuel and just running an e85 tune from shiv
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02-11-2018, 11:48 PM | #38 | |
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And forgive my ignorance but there is one O2 sensor before the cat in the header and one after it, and that's it, right? So much confiicting information, I don't know what to believe. I guess I'll just have to go full catless, flash the OFT OTS Stage 2 tune, and see if it shows emissions readiness. |
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02-12-2018, 04:17 PM | #39 |
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02-12-2018, 05:38 PM | #40 | |
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02-12-2018, 05:53 PM | #41 | |
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some catless header almost have a built in spacer on rear 02, like ones below. this is often enough to fool ecu like installing a spacer and you can sometimes re-enable P0420 and not throw cel and pass readness as the ecu sees values for its cat calculation within tolerance |
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02-12-2018, 07:48 PM | #42 |
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Has anyone added an RC circuit to the downstream o2 sensor to fool the ecu into thinking the system is ok? A one meg ohm resister in series and a 1 micro farad cap across the sensor leads.
I live in NYS and they check for smog readiness. I was planning on adding a cat less UEL header to use with the stock front pipe (with cat) and OFT. I sure as hell do not want to have to change the system back to stock for inspection every year.
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