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BMW X1 E84 xdrive20d ecu
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<blockquote data-quote="alantiong" data-source="post: 737000" data-attributes="member: 19754"><p>itchy back side.. ! seriously.. after remapping.. why would u put a piggyback unit on it?</p><p></p><p>tuner is right. the mapping is irreversible. but due to piggy back, which "cheats' the the ECU by creating + or - signal including of fuel ratio and timing, the ecu got confused when u put in a foreign signal.</p><p></p><p>the ECU is self learning. i believe you just need to stick with it wihout the piggy back a drive it for few hundred KMs and it will re learn itself.</p><p></p><p>By the way.. 0-100 hardly about horse power.. it the torque. and ur car is a diesel... ur rev maxed out at 5.5K... so u only use below 5250rpm, horse power do not make any difference. i did a bmw ppk ugrade on the same engine and had good fun with it.</p></blockquote><p></p>
[QUOTE="alantiong, post: 737000, member: 19754"] itchy back side.. ! seriously.. after remapping.. why would u put a piggyback unit on it? tuner is right. the mapping is irreversible. but due to piggy back, which "cheats' the the ECU by creating + or - signal including of fuel ratio and timing, the ecu got confused when u put in a foreign signal. the ECU is self learning. i believe you just need to stick with it wihout the piggy back a drive it for few hundred KMs and it will re learn itself. By the way.. 0-100 hardly about horse power.. it the torque. and ur car is a diesel... ur rev maxed out at 5.5K... so u only use below 5250rpm, horse power do not make any difference. i did a bmw ppk ugrade on the same engine and had good fun with it. [/QUOTE]
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