Jb1 vrs jb4
#27
MBWorld Fanatic!
Second this. The only mention on this forum of a bricked ECU that I can recall was with one of the big 3 flash tuners. I don't want to sound too "head in the sand" on the topic, but if no one is posting about this with any frequency here (MBworld), it's not something I would be too concerned about.
#28
Super Member
Second this. The only mention on this forum of a bricked ECU that I can recall was with one of the big 3 flash tuners. I don't want to sound too "head in the sand" on the topic, but if no one is posting about this with any frequency here (MBworld), it's not something I would be too concerned about.
#29
It has happened in the BMW community, on several occasions. You can turn this up with a quick "JB4 issue" google search. That being said, it should be taken with a grain of salt. People tune cars that are high mileage, plenty of existing problems and then you have the possibility of human error for install and/or custom tuning.
#30
It has happened in the BMW community, on several occasions. You can turn this up with a quick "JB4 issue" google search. That being said, it should be taken with a grain of salt. People tune cars that are high mileage, plenty of existing problems and then you have the possibility of human error for install and/or custom tuning.
#31
Super Member
Piggy back isn’t for everyone. Maybe go with a full tune or a Dinan piggyback.
#35
Super Member
#36
#37
Super Member
ECU flash for AFR and timing
JB4 for boost control, logging and other cool canbus features that a full tune can't do
#38
I guess buying an extended extra year of warranty on my car was a bad idea if I decide to tune.