CactusBastard

I couldn't find anything in the fuel pump assembly that looked like a check valve, but what does this thing do?

I took some pictures of my own, but can't seem to upload them, so the picture above is from covertrussian:

Hi guys,

Is the check valve part of the fuel pump assembly, or is it built into that hot mess of a pressure regulator?

Cfinn,

FYI, I got confirmation from USPS that my board is being shipped

The problem with that idea is that you might need to lower the resistance rather than raise it. Depends on how the sensor works.

Modifying the program would be ideal, but requires someone with programming skills. Just about anyone can fiddle around with resistors. The FSM says the sensor should be about 2.7K ohms at 20C, so we know where to start.

I may end up playing with it myself some day, but unfortunately it`s not near the top of my list.

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?

Mike, it may be possible to rescale the temp sensors if we knew where they were and which ones did what. They are likely thermocouples that convert a temperature into a voltage. You can always play games with sensors like that. The trick would be figuring out how the system worked and how the sensors feed into the controller, etc. If somebody can get a circuit diagram, that would be a good start.

 

Craig

Has anybody looked into this idea further? I would have thought a simple resistor in line with the interior temperature sensor would accomplish the shift? Perhaps a little trim pot?

Do you know if manual hvac can be changed to automatic? If so, what additional parts are needed?

Oh, were you serious? That would be a huge task.. The manual system has cable actuated temperature control while the automatic setup does everything electronically. There are seperate driver side and passenger side air mix actuators, I expect the ducting would be different as well. In addition to the control panel swap, there is the control unit itself, as well as some sensors that would have to be installed and wired in.. The blower motors are even controlled a little differently.

Trying to buy the Jazzy AUX but not getting any replies. This sounds interesting but complicated

How long have you been trying to get ahold of him?

I just ordered a board from jazzy earlier tonight. If I don't receive anything, at least paypal will refund me (they've done it before).

Diavolo, good job with this, thanks for sharing. I'm curious about sound quality. My assumption was that tapping into the antenna input will only ever provide FM quality audio. When you said that it sounds awesome, did you mean that it was better than FM radio quality? Or just that it was better than those FM transmitters? I've used an FM transmitter in the past and was disappointed with sound quality at the time.

If the Jazzy input doesn't get shipped, I may start looking at FM modulators too. The one you chose seems to get good reviews. Fallback option is a JDM panel.