Evo 8 cutting out/stalling

[kieran-evo]

Hey everyone, newbie here

I bought my first evo yesterday from Scotland, i test drove it & the car was brilliant, drove all the way back from Scotland to Leeds & again the car was awesome BUT when i drive round town sometimes the car cuts out on idol & when the car is cold & i started it this morning it kept cutting out the idol just drops then stalls but drives without a problem

Can anyone help me please & let me know if this is common or what it could be? all i can think is clean the butterfly valve or get the idol sensor checked?

Any help is much appreciated

[clutchitupson]

what dump valve you running?? if its a hks atmospheric poss look there first,,

[Lee5]

You need the base idle reset, this can cure the problem but evo's do this from time to time

[kieran-evo]

thanks for the fast replies, this is the spec list if it helps:

Mitsubishi Evo 8 FQ340
420bhp
MOT'd & Tax'd,
65kmiles (110kilometers)
Custom purple pearl paint
Evo 9 MR head lights
Evo 9 GT rear lights
Evo 9 boot spoiler
Evo 9 GT rear bumper
Custom rear fog light
Nose chop front bumper
De-badged and de-locked tailgate
Splitter, spats and side skirt extensions
Vortex generator
Team hiko wind deflectors
Custom limo window tints
Rota GTR 18x9.5inch alloys
D2 8 Piston Calipers with 348mm disk and bells
RalliArt mudflaps
Evo 9 steering wheel
Evo 9 Ralliart full half leather interior
Evo 9 Ralliart clocks
3 pod A-pillar with cyberdyne gauges
Greddy boost controller
Skunk2 gear :censored:
Dash insert colour matched to exterior
New black carpet
Alpine head unit with Bluetooth
2x 12inch Sony Xplod subs in custom boot build
Sony Xplod 1000watt amp
Good cabling throughout
Custom 3-1/2 inch Meercat exhaust (turbo back)
Fidanza flywheel
Exedy paddle clutch
Tien Coilovers
Poly bushed
New drop links
Track rods
Cv boots
Remapped by Ai Motorsport Ireland
Intercooler water spray
HKS mushroom filter
Red samco boost and coolant hoses
ARC Titanium heat shield
Cusco oil catch tank
AMS race battery
Evo 9 MR Turbo
Forge wastegate
Fully maintained by Bonarges Performance. Just been serviced with all belts pulleys and fluids all changed for brand new!

[Barry P.]

I had a problem a few months ago with my Evo IX cutting out at junctions,Chris at AutoTorque did a boost leak smoke test and we found a leak at the plenum manifold to head gasket and the throttle body spindle seals were leaking. I bought a set of uprated seals from Grant at GBEnterprises, Chris fitted those and a new gasket, smoke retest showed no leaks and now no more stalling.

[kieran-evo]

Originally Posted by Barry P.

I had a problem a few months ago with my Evo IX cutting out at junctions,Chris at AutoTorque did a boost leak smoke test and we found a leak at the plenum manifold to head gasket and the throttle body spindle seals were leaking. I bought a set of uprated seals from Grant at GBEnterprises, Chris fitted those and a new gasket, smoke retest showed no leaks and now no more stalling.

thanks for that, i will pass that on to the garage when they take it, am i best taking it to a evo specialist or my local car garage i have always used?

[davie-evo4]

Originally Posted by kieran-evo

thanks for that, i will pass that on to the garage when they take it, am i best taking it to a evo specialist or my local car garage i have always used?

Best take it to an Evo specialist,take a look in the traders section to see who's closest to you.

[Barry P.]

Kieran, take it to a specialist and check they have the equipment to do the smoke test. The machine connects up to the inlet side of the engine, it pressurises it and fills it with smoke, if there are any leaks you can see the pressure drop and smoke comes out of the area that is leaking. It is very common for the throttle spindles to leak, the seals sold by Grant are the uprated ones which hold a higher boost pressure.

[kieran-evo]

Ok thanks so much for the help lads