4EFTE : very bad gas mileage.

SalmanGT

Fresh Recruit
hi all,
I successfully solved my previous issue,
this is again my daily driver, cant sort this issue out,
the engine cranks a little longer to start, there is no black smoke coming out from the exhaust, previously said it was a injector issue. used to gave me 13km/L .
but this one is hurting me more. from last 2 months or so I am getting like 5KM/L.
stock ep 91 Swap in a ep70.
There are few things that might coz this issue but I think still they are not that big issues.

mods
2 bar fuel pressure.
Walbro 255lph
stock intercooler
1.5 ID exhaust pipe.
stock Cat
boost is 5psi
cant sort this is
turbo sounds to much if intercooler pipe is not connected.

i checked,
timing
wiring
earth
 
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