Boost Creep to Fuel Cut

[Supraflymk3]

I can't figure out why I keep hitting fuel cut. My car pulls hard and it creeps up to like 13 or 14 psi and hits fuel cut. My mods are driftmotion intercooler kit, 3" turboback exhaust, lexus afm, walbro, safc 2. It was happening even before I put the Lexus AFM in so I figured that would fix it. I have it tuned really good but it still creeps then hits fuel cut at the same pressure as with the stock afm. Oh yeah its still the stock CT-26 too. Any ideas are welcome.

 

[Late]

bigger injectors?

 

[hvyman]

Ya kinda need those but it wont be the cause.

How are you controlling the boost? Creep is all in the waste gate and controller.

 

[wardog]

What kind of boost controller are you using? Have you performed a boost leak test?

 

[Supraflymk3]

I'm on wastegate pressure and I have done a boost leak test and there is none. I tuned it a little more on my way home from work and it doesn't do it anymore. I think I had it running way to rich, Idk but its good now.

 

[Devin LeBlanc]

Are you using a wideband? What are the AFR's under WOT? Got a log?

 

[boostedmklll]

ya check your AFR's and make sure your waistegate is in good shape

 

[Supraflymk3]

It's all good now I got it tuned good. Although I just blew my headgasket after two days of it running good. I just ordered a new one though should have her back on the road next weekend hopefully.