Car is experiencing limp mode and I was curious if anyone could help on why

[Ghostcoffee]

Hello everyone I’ve been getting these two codes recently when I scan my car. I was wondering if someone could point me in the right direction on what it is? Possibly. It’s been causing my car to go into limp mode

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[Ghostcoffee]

I forgot to mention I’m running a catless downpipe, exhaust, and intake

 

[Traxion]

Searching the first code on the forums seems to be a non-issue but the second seems like that's probably what's causing it. Not seeing the code on these forums but here's a couple links elsewhere that make it seems like something related to your downpipe install or an O2 sensor.

https://f30.bimmerpost.com/forums/showthread.php?t=1538275

https://www.6post.com/forums/showthread.php?t=1793991

 

[BimmerGuy]

I forgot to mention I’m running a catless downpipe, exhaust, and intake

I'm curious how long after these mods before the codes started to appear.

 

[Thraxbert]

Lambdasonde is German for "lambda sensor," AKA O2 sensor.

You have a CEL because of your catless downpipe. You cannot fix it without a tune (in b4 someone with a defouler goes "WELL IT WORKED ON MY CAR") or restoring a catted downpipe.

 

[Mothman]

OP are you tuned or stock map? Bank 1 sensor 1 would make me believe primary 02. Is the car going into a limp mode or just the CEL?

 

[Ghostcoffee]

OP are you tuned or stock map? Bank 1 sensor 1 would make me believe primary 02. Is the car going into a limp mode or just the CEL?

I was tuned on a bm3 ots map, but I went back to stock because i thought the tune was causing my car to go into limp mode. I tried taking it to Toyota and they told me there was nothing wrong with my car and they weren’t getting any codes on their end :/

 

[Ghostcoffee]

I'm curious how long after these mods before the codes started to appear.

I’ve been running them for a year now and it’s been doing it since I’ve added the downpipe

 

[Ghostcoffee]

Searching the first code on the forums seems to be a non-issue but the second seems like that's probably what's causing it. Not seeing the code on these forums but here's a couple links elsewhere that make it seems like something related to your downpipe install or an O2 sensor.

https://f30.bimmerpost.com/forums/showthread.php?t=1538275

https://www.6post.com/forums/showthread.php?t=1793991

Thank you, Im looking into this now!

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