rb20 tunning

[240ez]

I noticed that when i rev it to 2500 rpm, i can see the fumes coming from the exhaust. When i hold the pedal at 2500 rpm, there no signs coming from the exhaust. Point is how would i got about adjusting the AFR?

[Sileighty_85]

so the engine doesnt go above 2,500 RPMS?

If so your MAFS is either dead/wired wrong/unplugged

[240ez]

It does. It drives normal, turbo response and all. I just see grayish smoke in my rear view that smells of unburned fuel when i drive shifting through 1st and 2nd gear.

[Sileighty_85]

try cleaning the MAFS and check for Boost/ Vac Leaks

[smelly240]

do you have a vented blowoff valve?

[240ez]

Will do. Nope. No vented blow-off valve. I have the stock circulatory one.