If anyone knows what these are I'd love to know... 1st pic: Fuel line, please replace ASAP 2nd pic: some vacuum/evap elbow 3rd pic: all look like they should be replaced connector: cannot say, could be anything, possibly headlight motor or wiper or whatever last connector: looks like a temp sensor ...

If you need a reference, mine pulls -0.6 bar (vacuum) in idle.

For rubber hoses imo it is less the mileage, more the age and maybe heat cycles(?) that will kill them. I have replaced all the coolant hoses on mine and if you plan to keep it I would also recommend to do it. It is not that difficult or expensive. And who knows how long these parts will be availabl...

Heater hose lines, the ones that go between the fire wall to the heater core? Yes. I'd recommend to get the do88 silicone lines and reuse the original hardlines. requires some DIY work, but it is not hard. I only ever inspected them visually since it is hard to get to, but when I replaced the heate...

4 or 5 mm hose should work. I have both, but can't remember which I used most commonly. Measure the outer diam. of the line, substract 1mm and use that as hose ID and you should be fine.

Might be that It was 3 & 4 mm, my bad.

Lots of work. I would also check the injectors, we don't know if they are the reason for it, but it won't hurt and is sensible imo. Maybe someone offers cleaning, or you can get refurbished ones... You an also try to clean them by yourself, build something to actuate the injector and spry carb/intak...

On the s70 I had the rear sensors failed one time. I remember I was able to get into the ABS on an obd2 tester and check the live data of the sensors, and one wasn't reading. It is not always the computer.
Replacing sensors with cable was a pain though with routing the cable.

btw, I am done with rebuilding them, but did not have any time to reinstall and try them for real. I don't think you need to replace the motors, they seem way overbuilt, but the brushes and rotors need to be sanded down a bit for them to work correctly again, at least on mine. I wanted to wait until...

I finally finished 2 rust repairs (tailgate and roof-antenna hole). So I'm driving it again and again got a srs code <212 driver airb. Open c.> after it sat for a while. Meh, I ordered a used clock spring, maybe I'll try that as a fix when I feel like it. It seems to go away after I clear it until i...