Hi guys I have recently bought my self a evo 4
Well.. 2 days ago to be exact

It has hks gt ii 7460r, 1000cc injectors, hks turbo back, evo 7 ecu and tune, toyota yaris coils and br8es plugs

When I had bought the car and drove it around a bit it was mint, no problems at all
Now my friend comes along and takes it for a test drive and he comes back with the car as if it was on limp mode . Wouldn't go over 2000rpm

Turned off the car and now it would stall as soon as the car is started. Car has been tuned with toyota yaris denso coils, removed those to find 1 has had cracks all around it. Replaced that and it is slightly better but still stalls.
All 4 plugs go black as soon as we try run the car (rich mixture?) We tried different plugs (factory evo4 ones) and the car is able to run but very rough idle, misfire and eventually stalls - maybe because the car was tuned on br8es plugs..?

Previous owner is telling me car had been parked up for 4 years, and that his tuner told him the br8es plugs need to be changed quite regularly.
Unfortunately I have not been able to get to a auto store yet but does anyone have any input on this issue?
Today I will be replacing spark plugs, check maf, and maybe try and see if there is a boost leak
But anything else anyone can think of I'd much appreciate
Thanks

 

is it throwing any codes?

 

I have semi fixed the issue it had a boost leak on one of the pipes. Now the car runs and boosts optimally but when I'm driving and put the clutch in it will stall. When I see the revs dropping I try and push the gas pedal down but it doesnt do anything..