Ok so ive been playing with a 15.5 e86b for the last few days and am about at witts end with this one. Ive tried all the combos i can think of for can message switches but this one just wont play nice with me. Done multiple 11-14s with no issues but this one keeps giving ,e the DEF Limited speed message without any codes. My question i guess would be, are the 11-14s and 15-16s similar in combonations or am i going at it all wrong. If someone could pm me or email me that would be sweet.