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Discussion Starter · #1 ·
i have an evo 4 with a iv engine and tt turbo a greddy profec boost controller evo 8 injecters and asfar as i know it has been mapped for the turbo. i was running it at 1.0bar but when its on full boost it seens to stutter (full boost only 1.0bar) and am not sure what is causing it any ideas guys?????
 

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Could be loads of things, the 'as far as I know it's been mapped' is not good. What ECU does the car have fitted, as you can only remap the V onwards ECU. If it still has the IV ECU fitted, the VIII injectors should not be used.
 

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Discussion Starter · #3 ·
i just got the car not long ago and i have recept for a map but i dont know what was tweaked it has a tme ecu and an upraterd actuator
 

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Be worth giving the previous owner or the place that mapped it a call, see what boost it was mapped up to.
 

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Discussion Starter · #13 ·
regapped the plugs and still the same, found out the car was mapped at 1.5bar any other ideas lads
 
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