I've had the Apexi Throttle Controller installed for about 11 months now and all of a sudden I have the CEL on. The vehicle responds saying that there is a malfunction with the Automatic Transmission or with the Throttle. Has anyone else had an issue with the Throttle Controller before?

 

I think some1 had this cel before with the apexi u gotta search the forum.

 

https://www.clublexus.com/forums/gs-...ler-issue.html

 

Check to make sure everything is still plugged in correctly. I think some have mentioned getting CEL if things weren't securely attached. What happens when you put everything back to stock?

 

As much as I love this thing I took it out after hearing a couple ppl here had issues I miss it....lol