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Mike M

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Everything posted by Mike M

  1. I have a 2006. I believe the systems are the same as the 2005.
  2. Audioi, I am very interested in your installation. Can you give us some information on the fan (i.e. size, cfm rating, the make and model number). It sounds like you have the fan sandwiched between the outer panel and the sensor housing. Do you have any pictures or if not can you give us a more complete description? I found that once I had Sam's fan assembly installed, simply leaving it set between 66 and 68 (66 if I'm alone or 68 if my wife who demands a warmer car is with me) kept the temperature within a comfortable range.
  3. Caramall2, To answer your question it is possible to blow air in through the vents but that would require mounting a fan assembly on the outside of the dash (rather aesthetically unpleasing) or mounting a fan sandwiched between the dashboard fascia and the sensor housing. This would require modifying or cutting the housing and possibly epoxying a small 40 X 40 X 10 fan to the housing itself. This is an intriguing idea. The possible downside is that the fan would be mounted very close to the front of the dash and its operation might be even more audible than if it were buried deeper behind the dashboard. lgt_nube, It think you are confusing my comments on the installation and operation of Sam's fan assembly with my comments on the operation of the LGT's HVAC fan. Sam's fan assembly (which functions merely to draw cabin air across the sensor) works flawlessly once installed but I found it's operation somewhat noisey for my taste. The solution would seem to be a quiter, lower flow fan or a potentiometer with which to adjust the fan speed. As an alternative to installing Sam's fan try simply cranking the LGT's system fan up on high to get the sensor quickly up to cabin temperature.
  4. I wanted to take the time to post an update on my experiments fixing the climate control system. My experience after a year and one half is that the system works fairly well in warm weather but pumps out far to much heat, even on the lowest setting, in cold weather. The problem is insufficient airflow over the temperature sensor. The temperature sensor is located right behind the lower dashboard fascia. The port is the pair of horizontal slits in the dash right next to the driver's right knee, just to the left of the radio. To access the sensor you need to remove the lower black panel under the driver's side dashboard, the lower dash panel under the steering wheel column, the shifter boot and cover, the piece of fake wood trim to the left of the shifter and the fascia piece along the forward driver's side of the center console. The sensor itself is inside of a rectangular black housing. Connected to the rear of the housing is a light gray flexible plastic conduit which travels deep up into the dash and connects to the HVAC system. Air is drawn through the conduit and over the sensor by a venturi (i.e. air flow through the system sucks air through the conduit). The problem is insufficient airflow. I met with Sam and bought the parts he uses in his Forrester fix. The link to find Sam is here: http://www.geocities.com/samiam_68/SubaruCCS/SSC_Fix.htm The big difference between the Forrester and the LGT is that you cannot simply disconnect the upper end of the conduit and plug it into the fan. The upper end of the LGT conduit is buried way the hell up into the dash where no human can possibly wriggle his hand. My solution was to disconnect the existing conduit at the sensor housing and connect a one foot piece of new flexible plastic conduit to the housing, route the conduit to a location just to the left and below the steering column and locate the fan there. The fan is mounted to a metal piece of the inner dashboard structure which detaches by removal of two screws. Once re-assembled the system works beatifully but I found the fan noisey. After living with the fix for the past month I removed it two days ago to see if I could find a solution for the noise. I have been corresponding with Sam and he suggests perhaps a quieter fan with a lower cfm rating. The assembly which Sam supplied me with uses a Sunon KDE1204PFVX which is rated at cfm 8.6. My thoughts are either a less aggressive fan or maybe the addition of volume control, rheostat or potentiometer (you have to cut me some slack here since I'm not well versed in electronics). I rather prefer this since it gives you the option of controlling the fan speed. I'm just not sure yet where I will locate the control. In the meantime I drove the car this morning and as I was waiting for the sensor to come up to temperature I had an idea. I turned the fan on high. This is somewhat counter-intuitive. If you are sitting in an uncomfortably hot car the last thing you want to do is blast the fan on high. But it worked, within five minutes the sensor regulated the heat to a comfortable level. It worked because I increased airflow over the sensor. As soon as the sensor came up to temperature the system immediately switched from footlevel airflow to bi-level airflow and at that point I simply hit the auto button, the fan speed lowered and the system maintained a comfortable level. Now mind you, I still intend to pursue re-installing the fan with a fan speed control to make the system work automatically as it was intended to. But for those of you unwilling to go through the time and effort of installing the fan I suggest you try cranking up the fan when you first jump in the car in the morning and leaving it there until the bi-level kicks in. If I get this all sorted out I will try to post some pictures.
  5. Craig, That's interesting. I guess it can be approached either from an electrical engineering point of view or a software programming point of view. Does the climate control system have its own chip or does the code lie within the ECU? Mike
  6. Well after living with my LGT for almost a week, I have to agree with danbart and c_hunter. The major problem with the system is that it is scaled wrong. A range of 65 to 85 (in reality 66 to 84) does not allow enough adjustment on the bottom end. A more proper range might be 60 to 80 (in reality 61 to 79). There are mornings where I only want enough warmth to take the edge off of the the air flowing in and it's jut not possible in the current setup. It seems to me that this should be fixable by tweaking the programming or system code. Anybody out there with the knowledge or resources to do this?
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