JB4 - Strange acceleration
2019 C43 sedan. JB4 + BCM
Posting .csv and graph here for any insight.
Map 2 - power loss:
Map 1:
Last edited by gabemcclintock; Sep 4, 2020 at 10:40 AM.
1. if you have a peddle commander that has a loose connection
2. need to reset your throttle
3.have a faulty peddle signal to ECU
If you switch back to map 2 does it happen again?

Haven’t switched back to Map 2 and tried since as was coming concerned about possible damage.
1. if you have a peddle commander that has a loose connection
2. need to reset your throttle
3.have a faulty peddle signal to ECU
If you switch back to map 2 does it happen again?
I actually just experienced the same thing on map 2 while making some 1/4 mile runs at the track. It was my very first run when I arrived.
2k brake boosted launch and lost all boost . And i mean All boost zero, zip, nada...... after parking it and scratching my head a bit I went to map 1 and had no boost issues. After a couple runs on map 1 I went back to map 2 and everything worked fine.
So , I can't say for sure what happened , but after several runs I never experienced that again.







