*MAXXD* Shane's Impreza Turbo 2000AWD

[Saint AAI]

Done a few things on this to try and get it running better. Had the MAF completely fail on me so checked the ECU and had 3 error codes stored. MAF and Lambda sensor were 2 of them, which I knew about, and the last one was the knock sensor. Bought and fitted a new MAF, old one is covered in crap, no wonder it was running lean. I've got a new Lambda sensor which I'll have a go at fitting on my lunch break today. ECU has been reset after the new MAF and I dropped the fuel pressure back down to normal. When taking the vacuum hose off the inlet manifold that goes to the FPR I noticed that I had a small hole in the vacuum pipework on the actuator. This is probably why I'm boosting to 1.6bar. Took the car for a test run and it goes pretty well, peaks at 1.6 then drops to 1.5bar and holds fairly steady. AFR's are ok, but I've upped fuel pressure to 3.5bar above manifold just to try to keep det under control as with my knock sensor being knackered, it won't detect knock and retard the ignition timing. Also running 1.5-1.6bar on standard UK internals is asking for trouble and I would expect ringland failure to occur soon if I don't sort it, and I'm guessing it's over speeding the turbo at that boost. Car is pretty much running on the edge at the moment and is certainly the quickest it's ever been, but for how long? So plans are to get new pipework and restrictor pills put on the actuator, fit new Lambda sensor, buy and fit new knock sensor, set fuel pressure back to normal and then reset ECU. Car still needs a remap and I will swap the ECU for a Simtek, Syvecs or Hydra before that gets done, but I'm trying to buy a house at the mo so cash is tight.