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-   -   C300 2016 w205 jb4 , limp mode underboost CODE (https://www.n54tech.com/forums/showthread.php?t=66545)

Cinedany 09-21-2021 08:26 AM

C300 2016 w205 jb4 , limp mode underboost CODE
 
I finally got my jb4 installed , when I select any map I get a undeboost error code , any ideas I only got the tmap plugged in, on the guide it says the manifold pressure sensor is optional , any ideas? Is it the other sensor coming out from the jb4 or a possible boost leak?

Terry @ BMS 09-22-2021 11:53 AM

Record a JB4 log on map1 and let's check it out!

Cinedany 10-04-2021 07:06 PM

Limp mode tends to happen when shifting gears
 
4 Attachment(s)
Limp mode tends to happen when shifting gears, unsure if i should have the manifold censor plugged in, but the guide said it was optional.


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