Quote:
Originally Posted by Stl-986
your obd scanners wont show a vac. there is no vacuum pid for porsche. what you are seeing is some math that is being done based on a couple things but it wont be true vacuum.
Watch some youtube videos there are few on checking for vacuum but I think your issues will go away with real o2 sensors.
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Thanks.
4 x Bosch O2 Sensors with correct plug fitted ordered for delivery tomorrow. I will get them fitted on Saturday, together with the new air filter and if it needs it MAF clean.
Hopefully we will then see what happens.
Intake manifold pressure is PID 0B (hex), I thought all vehicles had this, but that must be wrong.
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