[Tethys]

Do I have other issues? I'm trying to put the car back to stock, it has RK Sport intakes, Mad catted downpipes, JB4 on E40, and it has all of these codes. I am trading it in and need it to be stock with no codes when I do. Will taking it back to stock rectify these codes?

[BLK.G20]

Those are all plausible codes from a catless downpipe. Clearing and reverting to stock should rectify these.

[Tethys]

Originally Posted by ryann

Those are all plausible codes from a catless downpipe. Clearing and reverting to stock should rectify these.

Thank you, that's what I was hoping to hear.

[mike@x-ph.com]

Originally Posted by Tethys

Thank you, that's what I was hoping to hear.

Let us know how it goes

[Tethys]

Originally Posted by mike@x-ph.com

Let us know how it goes

I definitely will, thanks.

[forcefed]

Almost seems like one of the o2 sensors is damaged.

[Indo Rider]

Do you have any O2 sensor spacers or minicats?

I've been trying to understand better what the delayed reaction codes really mean and what causes them. Is it simply the lack of oem cats, or do those only appear if using some sort of spacer that moves the sensor out of the exhaust stream?

[Tethys]

Originally Posted by Indo Rider

Do you have any O2 sensor spacers or minicats?

I've been trying to understand better what the delayed reaction codes really mean and what causes them. Is it simply the lack of oem cats, or do those only appear if using some sort of spacer that moves the sensor out of the exhaust stream?

I do have the Big Daddy spacers, or mini cats. I do believe that is what us causing the delayed codes are, I just didn't know about the others.

[Indo Rider]

Thanks. Yeah those other codes kind of sound like a problem with the sensor itself or connection. I think I had similar intermittent codes on a N54 car. At one point I found that one of the wires was touching the exhaust manifold on the turbo and resecured it in the clips to make sure it wasn't resting on anything super hot. But I think I ended up replacing the O2 sensor(s).

[Tethys]

Originally Posted by Indo Rider

Thanks. Yeah those other codes kind of sound like a problem with the sensor itself or connection. I think I had similar intermittent codes on a N54 car. At one point I found that one of the wires was touching the exhaust manifold on the turbo and resecured it in the clips to make sure it wasn't resting on anything super hot. But I think I ended up replacing the O2 sensor(s).

Hopefully it is just the downpipes but I did order an 02 to have on hand just in case.

[tac3331]

I had the lambda codes from a loose secondary sensor and downpipe bolt.

[Tethys]

Originally Posted by tac3331

I had the lambda codes from a loose secondary sensor and downpipe bolt.

Thanks, it's going back to stock in the next few days so hopefully that will all be taken care of. Then it's being traded in.

[Tethys]

Originally Posted by forcefed

Almost seems like one of the o2 sensors is damaged.

I have one just in case that is what it is.