I did rb25det conversion to my cefiro a31, after conversion I had problem that the boost would not go more that 0.1 bar, I disconnect the wastagate hose and the boost go higher than 0.7 bar. I changed AFM and sparkplugs, tested the WG, coil packs and CAS and I did boost leak test but still same issue.
What should I do?
Note: the engine all stock and the current mods are:
-3 inches exhaust
- 255 lph walbro fuel pump
- 3 inches FMIC