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AC Troubleshooting Help

Brigand

Newbie
Location
WA
Hey all, I just received my OBD Eleven Pro on iOS and was eager to see why the AC blows warm on my 2006 GTI.

A scan shows no faults so I’m not sure where to go from here. I see that I can read live data but I’m not entirely sure what I’m looking for.

I suspect that my G65 sensor has failed. The live data reports 8 bar of pressure in the system. Is anyone familiar with what I should look at? Any help would be most appreciated, I haven’t had AC for quite some time now.
 

707Stang

I'm Hella From Nor*Cal
Location
Nor*Cal
Check if there’s a compressor off code in the AC System
 

Brigand

Newbie
Location
WA
Thanks for the reply. I did stumble across that by randomly viewing measuring blocks. I saw a Compressor Code of 0. This was with the AC system enabled.
 

Brigand

Newbie
Location
WA
Here some information I dug up when GTI's gave me some troubleshooting advice. Below are measuring blocks he asked that I gather.

At idle:

001-1: 0
002-1,2,3,4: .815 A to .825 A (bounced rapidly) / .820 / 1000 min / 2.21 lb. ft.
003-1,2,3: 101.5 PSI / 10% / 0%
004-1: 77.9 deg F
006-1: 89.6 deg F

Engine Speed at 2000 RPM:

001-1: 0
002-1,2,3,4: .815 A to .825 A (bounced rapidly) / .820 / 2800 min / .74 lb. ft.
003-1,2,3: 101.5 PSI / 10% / 0%
004-1: 77 deg F
006-1: 87.8 deg F

He provided a graph of what a healthy AC system looks like, and my compressor load is low, my refrigerant pressure is very low (reduced by half). And of course the Evap Temp is terrible at being hotter than ambient even.

It's most likely that my G65 has a slow leak and just leaked refrigerant out over time. I have a new G65 on order, will swap it in and read live data again. It'll probably read the same. Then I'll be taking it in to a shop to have them check the refrigerant level.
 
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