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Discussion Starter · #1 ·
The busa is up and running, but it's stuttering like mad on a part throttle and running realy rich.

I'm using the Healtech FI tuner ( its half the price of a PC5) I've dropped a downloaded map in - but its not right. Short of spending £400-500 on dyno runs, I'm not sure where to start.

Anyone know of how I can workout rougly what this should look like without spending a fortune ?

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i'd unplug it run it stock and see if its the tuner problem or something else.. a set of cans shouldnt effect it that much off a stock map

ive also never seen a map jump around that much in a small area.. im no tuner.. but seems a bit wild.
 

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email them and see if that's the actual map or if its corrupt etc.. like you say.. why but it if it makes it run worse..

if thats the only map they will give you, im not sure anything other than a custom dyno map will help..

on the site it seems it rewrites the stock ecu so its not a reall piggy back.. so really you should be able to do that without it at the dyno. opposed to a power commander where it makes changes within the unit itself.
 
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