LAck of Power at 2500rpm

Posts specific to the 2.5 litre turbo engine

LAck of Power at 2500rpm

Postby Russ tiger » Sun Feb 26, 2017 3:20 pm

Hi all,

My car is a MY08 Liberty GT Tuned by STi running an EJ 2.5L Turbo with 6 Speed manual.

For the past couple of months I have been having problems that when I get to about 2500rpm in any gear, it seems to pause with nil power until i hit 3000 rpm
and then it goes hard. As long as I keep the revs above 3000rpm there are no problems.

But here is the kicker, when this happens, I pull over, reset the ECU and then this issue goes away......until it returns. Then we do it again.

Does anyone have any ideas please? I thought maybe a turbo issue or a vacuum hose?

Thank you
User avatar
Russ tiger
Posts: 9
Joined: Sat Jul 20, 2013 8:47 pm
Location: Sutherland Shire NSW
Car: MY08 Liberty GT-B STi #076/250
Real name: Michael

Re: LAck of Power at 2500rpm

Postby norbs » Sun Feb 26, 2017 8:22 pm

Sounds like it's pulled timing.Reseting ECU clears IAM and FLKC table hence why it goes good for a while. I suggest don't do this till you get it looked at. Get someone with a logging tool to look at it.
'05 Lib GT with a few mods :-)
Posts: 368
Joined: Mon Oct 09, 2006 2:11 pm
Location: Melbourne

Re: LAck of Power at 2500rpm

Postby vinshonz » Mon Feb 27, 2017 2:58 pm

if its stock

i suggest you get it retuned

the stock sti tunes are really bad
2008 Liberty GT Tuned by STi 27 of 250 made
PnP VF52, AVO TBE into TCP-Ti Mufflers, AVO panel filter, Mishimoto TMIC, Turbosmart Kompact BOV, Kobe Silicone Intake + SFB, Kobe 340LPH pump,
Tuspeed 3Port, Exedy HD + lightened flywheel, some Whiteline bits & Corgiwerx bits, Zeitronix Flex Fuel Analyser Kit , e85/98 Flex fuel -Got it REX tuned

2007 WRX Tuned by STi 35 of 200 made
STi Spec C TMIC+ProcessWest splitter, AVO TBE, X3E Silicone Intake, APS CAI, TurboSmart Kompact, Walbro, GrimmSpeed 3 Port, DEFI gauges
TD05-18G 198.5kw on RTRs Dyno - SOLD
Posts: 245
Joined: Tue Mar 22, 2016 6:53 am
Location: SE MELB
Car: 2008 Liberty GT TunedBySTi
Real name: Vincent

Return to 2.5T engine specific

Who is online

Users browsing this forum: No registered users and 1 guest