Just installed a JB+ module on my 2013 JCW. The engine is having a really hard time now maintaining idle after start up. Once the car is warmed up it is not an issue.

Pulled 2 codes.

P00BC (Mass air flow volume) I checked around and didn't find any loose connections.
P11C1 (I can't find any info on)

Car is bone stock and ran like a champ before the module install.

Thank
M

 

I know there have been problems with JB+ modules purchased off eBay... Where did you purchase yours?

To troubleshoot, I would remove it, clear the codes, and drive around for a few days to make sure the car acts normally. Then, follow the installation notes explicitly to reinstall.
https://cdn.shopify.com/s/files/1/08...01744776776992

 

Very first thing you should do is remove it if the car isnt running right. Blows my mind that people are willing to drive these things around with fault codes caused by a mod. I know i might not have a ton of mods, but i can tell you if one of them throws a code, rolling back to stock first thing i would do. Bad enough that stupid TPMS light stares me in the face every day, it is inactive in my menu and i cant reset it, so a CES is the last thing i want to see.

 

The module is the real deal. Purchased from another user from this site.
I let it run for a while thinking it was just an adaptation issue. I will remove and bring the car back to stock to confirm no issues.

 

The car should operate fine during the adaptation phase, you just might not see the full potential during that time