chrisbarter

When I tested it at lower speeds this is what it did. It appears to climb to full boost pretty quick then trail off in the last 2 or 3000 rpm before redline. Not knowing the performance of the turbo its self I dont know how it should look!.

Is that the small solenoid on the top of the engine yeah? Pipes down to the turbo and wastegate actuator . . I unplugged that and it generated a fault code on the ecu so I plugged it in , cleared tje fault and it seemed to be fine. After that I used my mates Autel diagnostic kit and it did find a couple of codes mine didn't one being B0201 I think which was a high speed CAN communication error?. Seems to run ok but has a really nasty splutter and power is almost completely on and off but only noticeable at 5000 rpm in 6th gear so can't really keep going out and testing it lol :/ .

Well iv checked out all the pipework on the pressure side of the turbo to the intercooler and throttle body. When I removed the IC there was a bit of oil in it? Not enough that I could pour it out or anything! Engine oil level still spot on where it was after it was serviced. Before I did that I warmed it up and took it for a run and watched the boost pressure in all 3 modes I first then Sport and S# . Tried them all from 2000 revs in second and put my food down the graph for both sports is pretty much the same see attached pic, so im still stuck really!.

Nice one , couldnt work out how from my phone!

Only just noticed I wrote 300s instead of 330s in the title lol :/

I was taking the pressure from my bluetooth OBD reader and the torque pro app logging the data looking at inlet manifold pressure. Cant remember if there was any difference in the modes now but it certainly wasnt giving more than 9.5psi . . Hopefully il be off work this afternoon to go give it a good test in all modes then see what I can find. Il let you know what I find as I do! . . Yeah I thought if it was the actuator it should throw a fault code , it was showing wastegate limits/ operation code before its last service (less than 1000 miles ago) but that hasnt come back since it was cleared off and a vacuum pipe replaced that had come off near the fuel pressure regulator.

I tried in all modes , il have another look tomorrow. I have spoken to JGM in the past and he seemed pretty helpfull , only heard good things. . . Going to have to have a good look at it and see where to go from there.

I did think about seeing someone like Jolly Green Monster as they use Surrey rolling road which is local to me and get it looked at there. . Easter egging?

Haha yeah that's alright then!

Yeah torque certainly is a cheap easy solution :D wondering what the next step is , something a bit more professional that can do more?

Yeah as it runs smooth just isnt boosting enough I don't think its fuel . . Next job is to try and look at all the hoses tomorrow I think then. . On another note whats considered to be the best diagnostic kit for these hatch imprezas?

Not even a 1/4 through that tank of fuel though so not really had the cleaner through it yet.

Yeah that's what I thought . . Used my cheap bluetooth obd reader and the torque app. Could see it go from a vacuum to just under 10psi when it should be at full boost ? Fan cant be siezed as its producing some boost just not as much as it should :(.

Erm everything is completely stock and I've only ever run it on premium unleaded . . Filled up friday with 50l of petrol and 500ml of redex fuel system / injector cleaner :/

Car seemed pretty slow today and ddidn't seem to be boosting. . Scanned the ECU and theres no fault codes on it but its only producing 9.5psi in the inlet manifold not the usual 25ish . . Seemed to be fine yesterday then like this today . . Any ideas anyone? ?