hi everyone how are you doing so i bought a nissan cefiro with RB25DET swap bone stock engine and have been using the car normal but sometimes hard for about 1 month and had never did a compression test, opened the oil cap or make sure if white smoke came out from exhaust long story short i went and installed standalone link ecu changed sparks plugs and did the 1NZ coil pack swap then started tuning the car at 9 psi when doing a load run the car build boost for 9 psi then at 4500 rpm it go down to 5 psi stopped tuning and when to do a compression test with the car warm all spark plugs out but not WOT dry no oil and it read 120-121-120-145-123-120 installed everything back and reved the engine white smoke came out from exhaust but no to much what does this mean and does the tuning had any effect ? thanks
