G'day guys, first I'll introduce myself. I'm new around these parts, bought a '97 Auto 300ZX Twin Turbo (2+2 Targa Top) the other week at a low price. I've never really worked on cars before but I love reading so whilst it's been a learning curve I've already managed to do a bit thanks to useful guides on the internet/service manuals. The car definitely has issues and is currently unregistered but planning on getting it roadworthy again. Car has 104,000km on it. A bit of background; so far since I've owned it (about a week) it's had a fuel filter change (very easy), an oil filter and full oil change, I've ripped off the crappy HKS "death mushrooms" that were falling to bits, planning on bolting the Apexi Power intake directly to the AFM (already ordered, just waiting for parts) I am awaiting pricing for a set of new PFR6B-11B spark plugs from Repco (apparently they have to be ordered from Japan as they don't stock them locally in Darwin) I had brake lights stuck on and thanks to the good folk here I managed to find the plastic brake stoppers disintegrated on my floor so I'm awaiting pricing from Nissan spare parts on those (as everyone else wants to charge 50-100 shipping from the US... no thanks for a $5 part) The car likely hasn't had its 100,000km service, or much servicing at all I expect. So my to do list includes water pump replacement and timing belt + all the other 100k recommended parts but I'll have to do that over time. The TPS was sitting at 0.22v so I've now adjusted and the closest I can get is 0.44v. (I've got an ECUTalk LCD for checking the values thankfully) Now to the issues; The brakes are pretty average, when the car is off I can push the brake peddle almost to the floor, when the car turns on, it goes flat to the floor, if I pump it in quick succession it's almost like there is no hydraulic pressure as I can push it in quite far, the brakes aren't very good and don't seem to engage very well until pushed in very far (though it's not overly hard to push the peddle in, so I don't think it's the brake booster but I may be wrong?) With the brakes in this state I don't even drive it as I wouldn't trust me to be able to stop from even 60km/h in a reasonable distance. I'm pretty close to getting a mechanic to come have a look at my place however I thought I'd try here first to see if anyone has any suggestions. 2nd issue, which may somehow be related to the brake issue is I believe there may be some sort of vacuum leak. I've read a fair bit about this and seen a few methods of testing used. The only reason I believe this is because yesterday I was having issues with the car at running temp, revving it and the car would stall and not idle. This is why I fixed the TPS however I haven't tested if it was just a TPS issue yet as I haven't had a chance to do the same test again (hopefully will tomorrow) 3rd issue is there is some fluid leaking from the car, I've got a mat under it at the moment and the colour of the fluid is reddish. It appears to be leaking on the passenger side of the engine somewhere as it ends up on the passenger side of the mat on the floor. (Wondering if it's brake fluid, then it'd explain the issue with brakes being bad?) I apologise for the long winded post! As I said I'm pretty new to any work on cars so I'm sure I'll have lots of questions, but give me the chance to learn and I'll make every effort to take your advice on board. Oh also, I've pulled the ECU codes, no errors. Cheers in advance.