My current project: JDM Climate Control - Page 3 - Honda Prelude Forum

MidNKight-lude · 10-01-2002, 11:47 AM

ouch that sux, i am thinkin of gettin a front clip also, so i can steal every part on ther

concLude · 10-01-2002, 12:25 PM

i got mine shipped for 2500, damn i know stop rubbing it in, i feel like a dumb ass now

tastyratz · 10-19-2002, 11:22 PM

how is it goin forbidden? ive been a silent watcher and im thinking i wanna do this maybe. any progress?

Forbidden · 10-20-2002, 09:47 AM

Haven't touch that for a while, I'm kinda short on money lately and I have to pass the inspection this month and my rear brake are just gone

so it might be a while before I can continue on this but when I'll have something new I'll keep you guys updated, don't worry!

prelude2005 · 10-24-2002, 10:10 AM

FAQ'ed btw

pearl type sh · 10-24-2002, 10:13 AM

very nice im jealous.....looks tight.

ShadowSonic · 10-24-2002, 10:14 AM

Nice i wish i lived in canada so i could have their goodies from the lude.

Forbidden · 04-17-2003, 10:07 PM

Well guys I know it's been a long time but winter is finally starting to go away and I have a long weekend to work on the car so it's in the school's mechanic shop right now. Just to let you guys know what's the plan for the weekend, here it is:

- Remove dash
- Remove front bumper
- Drain coolant
- Remove heater unit
- Find a way to mount the air mix motor on the heater unit
- Re-assemble heater unit
- Re-assemble dash
- Install fog lights on bumper
- Re-install bumper

That's about what it's gonna be. Maybe not exactly in this order though. We already removed the dash and we started to get the bumper off but the helm isn't really that clear here and those clips are a pita when the bolts are rusted with them. Also note that unless you're installing fog light at the same time you do not need to remove the bumper

I should probably add a step somewhere called vacuuming and cleaning the mess of wires.

Here are a few pics I took tonight:

http://www.jrcormier.com/prelude/jdm...l/dcp00578.jpg
http://www.jrcormier.com/prelude/jdm...l/dcp00579.jpg
http://www.jrcormier.com/prelude/jdm...l/dcp00580.jpg
http://www.jrcormier.com/prelude/jdm...l/dcp00581.jpg

ECHprelude · 04-18-2003, 01:00 AM

go pre did a good job of mounting the air/mix motor. i just did what he did. ill try and find a picture of what mine looks like. glad to hear your starting it again. good luck!

ECHprelude · 04-18-2003, 01:37 AM

heres a pic of mine.

http://publish.hometown.aol.com/echp...s/acmotor2.jpg

Forbidden · 04-18-2003, 05:15 AM

Yeah I've seen how go pre mounted his. Though the thing is I don't have a JDM air mix motor and it's a bit different so I'm not sure it will mount the same way.

Scalifludesi · 04-20-2003, 01:58 AM

I got a question for ya regarding the compressor clutch engagement/disengagement... I don't know if this is right but after analyzing the JDM and USDM circuit diagram side by side I came up with this:

Wires that goes to thermostat:
BLU/YEL -from AC pressure switch
BLU/RED -from AC switch on the USDM control panel/heater control

Connection:
1. Cut the BLU/YEL wire from the thermostat and connect it to #1 BLU/YEL wire on JDM 20 pin connector. Basically you'll be connecting the BLU/YEL wire from the pressure switch to #1 BLU/YEL wire.

2. Leave the BLU/RED wire connected to the thermostat and connect the other end on #9 BRN wire on JDM 20 pin connector. So basically BLU/RED from thermostat to BRN on JDM 20 pin.

3. By doing #1 there's now 1 unused pin on the thermostat, now run a wire from that to #17 LT GRN/RED wire on JDM 20 pin connector (also LT GRN/RED wires from inside, outside and sunlight sensor are connected here).

Did I get it right? With that connection, I believe the climate control can now engage/disengage the compressor clutch.

Forbidden · 04-20-2003, 12:37 PM

You won't be using the thermostat at all, I just removed it and put the evaporator temp sensor where is was. What I did, I just cut the 2 wires going to the thermostat and connected them together. The thing is the thermostat just opens the circuit if the evaporator gets too cold so the A/C clutch disengages. The evaporator temp sensor sends the temp of the evaporator to the unit and the unit can then make the A/C clutch disengage if the temp is too low. If you want to keep the thermostat you can just leave it as is but I don't know if A/C will engage without the evaporator temp sensor.

Scalifludesi · 04-20-2003, 08:21 PM

So on the JDM evaporator unit, instead of the thermostat on our cars, it's replaced by the evaporator temp sensor? You have any pics of it? I need that sensor then. Do you know where to buy just that part?

edit: I just found the part, sorry

Forbidden · 04-22-2003, 05:40 AM

Well I'm pretty much done except for a bit of wiring. I should try the air mix motor tonight if it stops raining.

ECHprelude · 04-22-2003, 03:46 PM

do you have all 4 speeds working on the CC? mine only does none or full. very annoying. BTW, my airmix motor burnt out. need to replace it sometime next week. didnt have it lined up right from the start i guess and it was working too hard. looks like the dash is coming back out.

Scalifludesi · 04-22-2003, 07:35 PM

Quote:

Originally posted by Forbidden
Well I'm pretty much done except for a bit of wiring. I should try the air mix motor tonight if it stops raining.

Sweet! Just make sure you don't leave your followers in the dark once everything is fully functional

We all depend on you and go pre

BTW I just need to install the evaporator sensor then I'm all set. That JDM circuit diagram was really a big help.

Forbidden · 04-24-2003, 03:43 PM

Quote:

Originally posted by ECHprelude
do you have all 4 speeds working on the CC? mine only does none or full. very annoying. BTW, my airmix motor burnt out. need to replace it sometime next week. didnt have it lined up right from the start i guess and it was working too hard. looks like the dash is coming back out.

Yes I have all speeds working. I just finished the wiring for my air mix motor (I got one from a 99 Accord) but I guess I haven't lined it up right either cause it only turned a bit when I went to full cold and then haven't moved at all since. I guess I'll have to play a bit with it or try to get a JDM air mix motor. It seems so much easier with the JDM air mix motor. Also why do you need to remove the dash? It looks like it could be swapped with the dash still in place. At least I'm pretty sure I could remove mine without removing the dash now that I know how it works under there.

Scalifludesi · 05-03-2003, 03:07 PM

I finally finished hooking up everything and the blower works at diff speeds. AC compressor also engages/disengages at a touch of a button. I'm very happy now that my climate control is fully functional. So I went for a drive on the freeway and on the way back my blower would only work at full speed or none and the AC compressor won't engage anymore. Now I'm pissed off, I just hope that it's just some loose wires. Looks like its time to take out the center console again.

MidNKight-lude · 05-04-2003, 12:53 AM

omg damn you justin, your doing my JDM now

SLICK96 · 05-05-2003, 06:43 PM

Quote:

Originally posted by MidNKight-lude
omg damn you justin, your doing my JDM now

Yeah seriously...I'll hire you to do one for my ride, if you're willing.

J

MidNKight-lude · 05-05-2003, 07:04 PM

Quote:

Originally posted by SLICK96

Yeah seriously...I'll hire you to do one for my ride, if you're willing.

J

me first slick, i am sorry but you have to wait in line

ECHprelude · 05-05-2003, 10:23 PM

i can't wait to start work on mine again. it just sits there staring at me. saying 23...but blowing 36.

go pre · 05-06-2003, 12:20 AM

my airmix motor is still going strong, works pretty well hot to cold. but if you guys are having problems with the blower too it makes me wonder if we're hooking it up wrong. i followed the wiring diagram and also only have it working at none or full blast (even though the full blast is only like 3/4 power)

Scalifludesi · 05-06-2003, 01:40 AM

Mine works on all speeds. Turns out that I had some loose wires inside that I forgot to secure. Digital OWNS!!!!!

And I like the way the fan changes speeds, like a light bulb with a dimmer switch - gradual increase.

Hien and Slick: I'd be more than happy to help you guys install it. Just let me know

ECHprelude · 05-09-2003, 11:05 AM

got all 4 speeds working. YAY! had some wires wrong. now i just need to get the airmix motor going the right way. its assbackwards. tried reversing the wires but the motor didnt work right then.

Scalifludesi · 05-09-2003, 11:14 AM

good to hear you got it working

How about you, me, go pre and Forbidden combine all our install experience and make the ultimate JDM climate control write up with detailed pics to our PO.com family?

L-U-R-C-H · 05-09-2003, 12:43 PM

I'm gonna start my Climate Control project soon as well

ECHprelude · 05-09-2003, 10:04 PM

ok, gave up on getting the motor to work the right way. ill live with it backwards. problem i am having now is when i hook the sensors up (lt grn/red goes to all sensors and airmix motor) the air mix motor stop functioning properly. i un hook the sensors and it works again. anybody else have this problem? anybody else try and hook up the sensors? i also need to know what wire from the old usdm harness goes to the ac switch. i know the blue/yellow from the jdm goes to it. ugh. wish i had a helms.

Scalifludesi · 05-10-2003, 12:15 AM

AC signal would be BLU/YEL from JDM harness to BLU/RED #1 on USDM harness.

ECHprelude · 05-10-2003, 11:29 AM

is that the big blue/red on the usdm? my harness is long gone so i dunno which blue/red.

oh. by the way. earlier in the thread, or it coulda been theother thread, someone asked if the fan/ac/mode buttons light up at night. my old unit didnt, but the new one i got does! so yes, it should. my new one doesnt beep though

Scalifludesi · 05-10-2003, 06:22 PM

no, its the small BLU/RED wire

SLICK96 · 05-10-2003, 10:04 PM

Quote:

Originally posted by Scalifludesi
Mine works on all speeds. Turns out that I had some loose wires inside that I forgot to secure. Digital OWNS!!!!! And I like the way the fan changes speeds, like a light bulb with a dimmer switch - gradual increase.

Hien and Slick: I'd be more than happy to help you guys install it. Just let me know

SWEETNESS!!! I have to re-do my front suspension components, first, and pay for my headswap parts, but after that, I'll focus on getting ALL of the climate control parts. Where did you get your airmix motor & all of the other parts from? Sorry for not searching, but it's literally impossible to follow all threads when you work full time...

J

Scalifludesi · 05-10-2003, 11:45 PM

I got the whole conversion parts from a fellow Luder here on PO.com. He was supposed to install it to his car but never had the time to hook it up, so I bought it off of him.

SLICK96 · 05-11-2003, 01:05 AM

Quote:

Originally posted by Scalifludesi
I got the whole conversion parts from a fellow Luder here on PO.com. He was supposed to install it to his car but never had the time to hook it up, so I bought it off of him.

Yeah, I figured I'll have to do quite a bit of work to find the whole list of parts needed. Once I do, I'll definately give you a PM, or something. I need to luck out and find those parts as well as the JDM fogs for 4th gens...

J

ECHprelude · 05-20-2003, 04:03 PM

ok, still having problems getting the ac to engage. hooked the blue/yel wire to the blue/red and hit ac on and nothing happened. what else do i need to connect? i have the jdm therestat sensor hooked up. i didnt unplug the usdm therestat. do i need to do that? you said connect the two wires for the usdm thermostat together but there are 3 wires going to it. unless you mean at the actually thermostat itself. ugh. its really hot down here now and i need this thing to engage the ac soon.

Scalifludesi · 05-21-2003, 12:43 AM

There's only 2 wires that goes to the USDM thermostat.
1. Unplug those 2 wires from the thermostat and short them.
2. Then connect the evap temp sensor to your JDM unit.
3. Connect that one AC wire we were talking about to your JDM unit.
4. Your AC clutch should engage provided you have all 4 speeds functioning on your blower if not, the clutch won't engage if it's only full speed or no speed.

You also need to run a wire from your speed sensor (Orange wire) and connect it with the Orange wire on the JDM unit. If not there's a possibility of frying your JDM unit.

Reason behind that: Although I haven't proved this one yet but when I was running over 80 mph, my blower ceased to function normally. My blower used to function on all 4 speeds, but after that it only blows at full speed or no speed at all. Also the buttons on the JDM unit doesn't light up at night anymore (they used to). Looks like I need a new unit and that's $50 down the drain

Forbidden · 05-21-2003, 07:29 AM

Quote:

Originally posted by Scalifludesi
There's only 2 wires that goes to the USDM thermostat.
1. Unplug those 2 wires from the thermostat and short them.
2. Then connect the evap temp sensor to your JDM unit.
3. Connect that one AC wire we were talking about to your JDM unit.
4. Your AC clutch should engage provided you have all 4 speeds functioning on your blower if not, the clutch won't engage if it's only full speed or no speed.

You also need to run a wire from your speed sensor (Orange wire) and connect it with the Orange wire on the JDM unit. If not there's a possibility of frying your JDM unit.

Reason behind that: Although I haven't proved this one yet but when I was running over 80 mph, my blower ceased to function normally. My blower used to function on all 4 speeds, but after that it only blows at full speed or no speed at all. Also the buttons on the JDM unit doesn't light up at night anymore (they used to). Looks like I need a new unit and that's $50 down the drain

This is interesting... I haven't connected the wire to the VSS yet and my 4 fan speeds are working. Though I haven't had a chance to try A/C since the system is empty and I'll have to convert to R-134a since I had R-12 in it before. My lights don't all light up at night either, the recirculate, mode, fan and A/C don't come on at night, sometime they do but very rarely.

Also for those wondering I played a bit with the Accord air mix motor but it doesn't work well, I can only set the temp to full hot or full cold so I'm gonna try to get a JDM air mix motor. Though I have to keep some money for my new tires when they get here in a few weeks so it'll have to wait, unless someone wants to donate a JDM air mix motor...

ECHprelude · 05-21-2003, 11:05 AM

i have an extra jdm motor but i think its blown. i have a contact if you need another one. just let me know.

i hope i dont have to connect the orange wire because my VSS doesnt work either. i also noticed there are like 3 or 4 wires coming from my usdm harness that arent used still. there is a thick blue/red wire. whats this for. im going to go try and short the thermostat now, see if that works. i noticed my ac fan is turning on now when the engine gets really hot. i am hoping that is a good sign.

SLICK96 · 05-21-2003, 01:42 PM

Damn...seems like everybody's spending a grip to get these things working correctly, after they work correctly for a little while.

J

H23Lude · 05-21-2003, 02:00 PM

good job guys! I wish i could do mine but i just dont have the time. And i cant afford to mess with my A/C now because its way too hot here in houston right now. hehee

btw: I have a JDM climate control for sale if anyone is interested. It comes with the wiring and one of the sensors.

SLICK96 · 05-21-2003, 02:06 PM

If I didn't have to buy a grip of front end suspension parts, I'd buy it from you...how much you asking?

J

ECHprelude · 05-21-2003, 05:24 PM

i dont get it...does grip = money? i dont see the connection? like whip being a car. where do people come up with this crap?

oh BTW, ive spent about $430 so far on this damn climate control, but i love it more than anything else ive done to my car. anybody can have rims and kits and wings....who can have a diital cimate control? me! hehe

Scalifludesi · 05-21-2003, 05:50 PM

$430 for a climate control thats sounds like a lot. I only spent like $140 for the whole thing + $40 for the evap temp sensor and relay. But yea how much you spend doesn't matter because it what makes you unique

For the record, how many do you guys think have done more than 80% of this swap? What I mean like more than 80% is that everything should be functional except for the air mix motor. Hehe mine used to be 99.99% functional until I took the air mix motor out because it doesn't fully open/close the valve and I'm too lazy to install it back, but I will when I have the time.

ECHprelude · 05-21-2003, 07:50 PM

i paid $350 orginally for the whole thing sensor, and heater valve vacum control. alot of people dont have that. anyways. i had to buy another unit cause i fried my first tryin to hook it up. so total $430 ish.

anyways...i noticed something. i finally got ahold of a helms and was comparing the jdm diagram to the usdm one. look at the ac clutch relays on both of them. notice something different in the wiring? the jdm one connects to the condenser relay (white/grn) while the usdm conects both to the yel/blk to the fuse box. i think i am on to something here. might have to cut one of the ylw/blk wires and run it to the condenser relays white/grn wire. shouldnt be to hard, they are right next to each other under the hood. what do you guys think?

SLICK96 · 05-21-2003, 08:15 PM

Quote:

Originally posted by ECHprelude
i dont get it...does grip = money? i dont see the connection? like whip being a car. where do people come up with this crap?

oh BTW, ive spent about $430 so far on this damn climate control, but i love it more than anything else ive done to my car. anybody can have rims and kits and wings....who can have a diital cimate control? me! hehe

Yeah, grip means a LOT. Where you been??

J

mr. r00t · 05-21-2003, 08:46 PM

a 'grip' means alot. so a 'grip of money' means 'alot of money'. anyway, i'm waiting for you 3 or 4 super brains to get together and write a full writeup! let's see it!

ECHprelude · 05-21-2003, 10:15 PM

working hard on it now. way hot outside. bought some freon today. just need to get that ac clutc to engage. hard cause i have a s model and everybody else has an si or vtec. plus my engine harness is the wrong harness. ah the troubles. very soon though. very soon.

Scalifludesi · 05-22-2003, 08:12 PM

Full write up with pics will be up as soon as I'm done with my finals

ECHprelude · 05-22-2003, 08:15 PM

still no ac engaging. is the ac (blue/yel) wire supposed to put out voltage? i hooked a test light up to it and turned it on and no voltage. also, my thermostat has 3 wires going to it. the same two as you guys and a yellow black wire. any clue why the yellow black wire is there?