When you down the throttle it boost to 16psi then down to 11-12 sometimes 9psi, it seems to differ with the engine revs, i.e. if im in 6th cog at 70mph and down the throttle it over boosts to about 19 then back to 8 then up to 16 then down to 11-12 ???
Iv been told that with the evo 260 chip it should be boosting at 14 rather than 11. Lengthening the actuator toward the batt doesn’t seem to make any difference. Iv had a scope on that small valve that opens the actuator and the wave form is changing just as the boost drops off, making me think that the ecu is telling it to bleed off early ?
Has anyone got any ideas ?
fmic from a frontera, and stainless pipe joined with rubber
c20let from a N reg calibra
Vmax EVO 260 chip