Vacuum lines.... what’s this ???
04-25-2020, 07:45 AM
#16
sorry for the weird thread everyone.
cheers
04-25-2020, 07:57 AM
#17
Rennlist Member
yep, I thought as much but there doesn’t seem to be anything that DOESN'T work when engine is on or off, the brake pad sensor is a physical issue I need to sort out, it’s just coincidental timing. What system might need to retain vacuum when the engine isn’t running ??? I simply can’t find something that wasn’t working when it was totally open. There must be something or am I now looking for a problem that never existed ??? Just seems odd.
sorry for the weird thread everyone.
cheers
sorry for the weird thread everyone.
cheers
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9two8 (08-17-2023)
04-25-2020, 09:39 AM
#18
For example: Doing a wide open throttle acceleration, if there was no vacuum reservoir, there would be no vacuum available to open the flappy valve as the RPMs pass ~4000.
04-25-2020, 05:58 PM
#19
Ah, that makes sense. The HVAC system is working but I’m trying to determine if it’s completely correct. It’s been years ( 10+ ) since this beast was running regularly and I simply can’t remember what was gong where back then... I’ve got nothing to compare it to apart from my S2 that hasnt run for 14 years !!! So. Now I’ve confident everything this connected at the splitter, it’s all holding vacuum really well and the vacuum reservoir is now back In the circuit I’ll go in behind radio and check the HVAC lines in there. If I’m sure they all hold vacuum then I’ll know it’s all working as well as it can. I’ll check the flaps for sticking as it sat for so long but then will replace some aircon O rings and recharge. I recharged before summer ( here in NZ ) and it ran beautifully for 6 months before slowly fading away. It’s obviously lost gas pressure. Not bad for a car that’s been sat for so long! I’m just happy that the vacuum reservoir is hooked back up and it clearly will provide some benefit, I just haven’t experienced that part yet. I’ll keep this thread gong as I find stuff and get it to a natural conclusion hopefully. Thank you everyone for your input.
08-17-2023, 03:18 PM
#21
Pro
Hi Tony,
I can’t get into that thread you sent, I’m open to all suggestions at moment.
I started looking though the threads on instrument cluster removal and decided to hang on till we’re out of lockdown just in case I need some bits.
I must admit I’m thinking, now I’ve got the lights going again’, that it’s just some complete coincidence and the brake sensors have decided to break at this moment to mess with my head. The only way to solve that is new pads and sensors all round....hopefully this one is simple but it still doesn’t answer the original question as to what the reservoir does as it’s running no better or worse than before when it was completely open and all other functions and performance appear exactly the same. It just seems like a surplus bit of kit ?! Why would Porsche do that ??? There must be a reason.
I can’t get into that thread you sent, I’m open to all suggestions at moment.
I started looking though the threads on instrument cluster removal and decided to hang on till we’re out of lockdown just in case I need some bits.
I must admit I’m thinking, now I’ve got the lights going again’, that it’s just some complete coincidence and the brake sensors have decided to break at this moment to mess with my head. The only way to solve that is new pads and sensors all round....hopefully this one is simple but it still doesn’t answer the original question as to what the reservoir does as it’s running no better or worse than before when it was completely open and all other functions and performance appear exactly the same. It just seems like a surplus bit of kit ?! Why would Porsche do that ??? There must be a reason.
