Fuel Cut

[Gerry]

My Glanza has a toyosport manifold, decat, japspeed exhaust, ct9 turbo, FPR,hks actuator, front mount intercooler, front mounted air filter and a excedy clutch and is hitting fuel cut at around 4-5k rpm, when I first got the car it had major boost lag which didn't bother me too much but then it also started hitting fuel cut, I found out the problem was that the actuator wasn't tensioned correctly and then after turning it in abit (128mm)there is now no lag but it is still hitting fuel cut, any help would be appreciated as I can't work out what it is! Cheers

[Ollieh17]

sounds likeboost creep, do a search on it. Only way round it with a ct9 is porting the wastegate or a external wastegate. Or setting the boost even lower

[Gerry]

I was going to try and do away with the front mounted air filter would this help?

[Ollieh17]

it may do, i hit fuel cut with standard efi pipe in place and just a decat and exhaust

Edited February 12, 2014 by Ollieh17

[Gerry]

Oh I see mate, I should maybe just try turn the boost down using the actuator then?

[daniel_g]

Turn the boost down with the actuator, it might still creep up to over 0.85 ish which is where fuel cut comes in. If it does its because of the breathing mods and this cold air atm.

Moving the intake to the back of the bay might help, so might getting a bung for the exhaust.

[Gerry]

The exhaust already has a silencer in it mate, I'm going to try turn it down slightly more