o2 Disable for HFC DP?

[armenls1]

Hey guys, probably a subject beaten to death but I didn't find a direct response to my question. I recently got an Invidia HFC DP installed and wanted to know if you still need to tick the "disable o2" option in Hondata? The Invidia DP is a 200cel HFC. I ran the car 2 times at WOT without uploading the Hondata map and got the p0420 code. Just wanted to make sure it's upload map and disable 2nd o2 or no need?

Thanks!

Sponsored

 

[360glitch]

Yes, go ahead and disable it.

 

[armenls1]

Yes, go ahead and disable it.

Cool, does it affect anything by disabling it? I know it's not a AFR or anything but does it hinder any important information for the ECU?

 

[kefi]

Cool, does it affect anything by disabling it? I know it's not a AFR or anything but does it hinder any important information for the ECU?

I'm not 100% on what all the O2 sensor is used for, but..

There's a box specifically for disabling P0420, use that and not the checkbox for disabling the O2 sensor altogether.

 

[Doublestack00]

That is odd, couple thousand miles on my AFE catted no defouler and no CEL.

 

[seselectronics]

The secondary o2 sensor is mostly used for check the status of the catalytic converter , that is why the sensor is located in between of the dual catalytic converter (OEM cat) or right after the aftermarket cat, if the location of the secondary o2 sensor is too far from the primary sensor the readings will be too slow and it will take like there is a problem with the catalytic converter. That is the reason some aftermarket downpipe produce errors and others doesn't, you need to take in consideration the secondary o2 sensor location.
The secondary 02 sensor compare the readings vs the primary , if the secondary the response is too slow you will have error code. You can disable the code permanently with any tuning device ( Hondata or Ktuner)

 

[kefi]

The secondary o2 sensor is mostly used for check the status of the catalytic converter , that is why the sensor is located in between of the dual catalytic converter (OEM cat) or right after the aftermarket cat, if the location of the secondary o2 sensor is too far from the primary sensor the readings will be too slow and it will take like there is a problem with the catalytic converter. That is the reason some aftermarket downpipe produce errors and others doesn't, you need to take in consideration the secondary o2 sensor location.
The secondary 02 sensor compare the readings vs the primary , if the secondary the response is too slow you will have error code. You can disable the code permanently with any tuning device ( Hondata or Ktuner)

*takes notes*

 

[hobby-man]

I never got a P0420 code with my 27WON catted DP, but P0139 did pop up quite frequently in the winter (never in warmer weather). I went ahead and disabled that one also.

 

[Doublestack00]

*takes notes*

You won't pass emissions if it's disabled if your area requires it.

 

[REBELXSi]

You won't pass emissions if it's disabled if your area requires it.

Is this true? I thought No CEL = Pass?

 

[hobby-man]

Is this true? I thought No CEL = Pass?

Apparently if you disable the CEL, your emissions system will show as "not ready" which = fail also.

 

[REBELXSi]

Apparently if you disable the CEL, your emissions system will show as "not ready" which = fail also.

Lame, I wanted a catless DP but I also want to pass inspection. Always thought the disabled CEL fixed that. Guess not.

 

[hobby-man]

Lame, I wanted a catless DP but I also want to pass inspection. Always thought the disabled CEL fixed that. Guess not.

This is just what I've heard from others, it may vary state to state? Luckily they scrapped e-test in Ontario.

 

[Doublestack00]

Lame, I wanted a catless DP but I also want to pass inspection. Always thought the disabled CEL fixed that. Guess not.

Disabled = Not ready and at least in GA you will not pass.

That is what I went AFE, they will not throw a CEL and do not need a defouler.

 

[kefi]

Apparently if you disable the CEL, your emissions system will show as "not ready" which = fail also.

I'm not 100% on this but isn't that only the case if you fully disable the secondary O2 and not just the CEL itself?

Sponsored