EVC4 Boost problem

N

NISR227

Member
Anyone experience with the HKS EVC4?

I have noticed my readout on my EVC4 boost controller is showing its only hitting about 0.93bar or so most times I put my foot down (resetting reguarly) even though its set at 1bar. Is this due to the hotter temps this time of year?

The car has been mapped at 1bar with the unichip, would it be OK to move the boost level to say 1.05bar (even though it hasn't been mapped for that slight increase) to allow for the slight difference, and if so, does anyone know how to do this (i'm at Trax if anyone wants to show me?)
 
coxie

coxie

New Member
hi mate you need to go in to the offset mode to adjust the desired boost pressure if you have any probs pm me and i will help you. :D
 
J

J-GTi-R

Guest
As for raising the boost with the fuel map, it would largely depend on how it's been set up. At 1-bar, it'll be more leaned out than enrichened, especially in the mid-range, so the ECU may not have the range to adjust itself for the extra fuel requirement. The standard ECU can cope with 1.05 bar, as you'll remember mine was fueling fine at 1.1 bar at Powerstation, but without knowing what the map is like, it might be a bit of a risk.
 
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