| Cleaned the MAF and the car has a different personality. Still didn't get to the plugs but the performance is much improved.
Charged the A/C with about 24 oz R134 and the air is ice cold quick again. No problems, no hissing from the center vent. (thank goodness for this forum helping with A/C diagnostics)
As for the grey tube being the pneumatics system, all of my pneumatics work properly without any noise or leaking. It almost looks like some sort of drain tube, I saw a picture somewhere that shows a fitting in the middle that runs through to the wheel well (this is what led me to this conclusion. It hasn't been confirmed yet though), I'm not going to worry about it for now. |