Installing AC in EG Hatch!!!! - Complete Guide (92-95 Honda Civic)

[@itzpat215]

I have a 93 civic ex coupe with r12 still in it. This is useful for me and others for us to keep r12 and to install

[@Hatchpatchkid]

Good video I will definitely be using this video for a guide on installing my ac system into my 92 civic hatchback

[@jrburger1987]

I just replaced my a/C compressor as well in my 00 EK I replace dryer and clean the evaporator and replace the expansion valve. I need to poor some oil in the compressor.. So hopefully I can get it charge and see if it blows cold.

[@JeffreyJamesBrown]

Hey just starting this process on a 92 si with a B18C (ac never installled). Curious if you had an IG where I could share some photos of the process? Thanks for your help with these videos.

[@projectgoodspeed]

@JeffreyJamesBrown Ayye!! You got the B18C thats f**** siiick!!!🤙 In an Si model too!!! Cleann 🔥 i couldnt afford the si model when i bought the little hatch back in the day but i had always wanted one. As for the Ig im gunna do another series here pretty soon and ill put that in the description for those who want it👍

[@JeffreyJamesBrown]

@ It’s just great to have an EG with such a supportive community! My first car was a red si but I sold her long ago with regret. I was so thankful to find this one owner black flint si with all factory options. Had to restore the entire exterior (including welding in new wheel arches) but was worth it to save her! The B18C1 I was thankful my buddy hooked me up with it. The original D series needed to be rebuilt so I decided to go this route and stay era correct. I’ll be coming down to the Bay Area on a cruise this summer so maybe we’ll cross paths. Wish you all the best with your build and once again can’t thank you enough for all the help/advice 👊

[@projectgoodspeed]

@JeffreyJamesBrown Damnn that sounds like crazy work!! Welding wheel well arches?? Idk if i would had the patience for that but props to you!!!✊ Ive always wanted a B18c1 in my hatch but people taxin out here wanting 5k for an underpowered B series.. but mannn that B series 😅plus i need it for smog! Lol hopefully i can get the civic back on the road by then but idk bout takin it to the bay again…😅 The Bippin out there gettin crazy, my civic needs its windows😂

[@frias2287]

Nice one bro 👍

[@mariacenteno6509]

Great Video Very Helpful I Just Bought A 1993 Honda Civic Dx Putting A Sunroof And A.C Keep Up With The Videos

[@aaronjerome1200]

A bro I have a 88 CRX I just recently found a 94 civic 4 door automatic with complete AC would I need to modify anything If I removed everything from the donor vehicle..my CRX is bone stock..

[@projectgoodspeed]

@aaronjerome1200 thats a good question broo… im not entirely sure the housing, from the civic where the evaporator goes, would fit under the dash in the crx. Or if the AC lines you would line up to the firewall holes idk exactly where they are in the crx but in the civic theyre behind the battery

[@aaronjerome1200]

You’re right, I did notice that the donor civic battery box is up against the fire wall..I guess Im trying to figure what other parts I can take from this vehicle to put my own AC together..Do you know if my ECU will need to be upgraded to pull this off?

[@projectgoodspeed]

@aaronjerome1200 im pretty sure your ECU should work just fine. If your car already had AC or was atleast designed to (idk too much about CRX) the only thing i would think to check is to make sure the relays and fuses are similar. As well as maybe rewiring the AC subharness in the engine bay to fit the newer model subharness.. The rest would just be a matter of fitting one component to another👍

[@danielhiemstra3834]

Just came back to this video can you explain where the wiring harnes goes? I got the relays mounted in the correct location already but the wire with the connector that plugs in to the engine harness how is it ran? Thank you very much in advance i hope to finish my ac tomorrow🤞

[@projectgoodspeed]

@danielhiemstra3834 Yeah, no worries. Soo after you mount the relays the wire harness runs through the front of the car across the radiator support and bolts onto the harness in the engine bay behind the passenger headlight. The stock air filter blocks access to it and there should be a blocked off harness clip thats bolted to the engine bay side wall

[@johnrivera5361]

i have 94 civic. the compressor clutch engages when i press the ac button but does not disengage. if i turn off the ac button it disengages. the compressor usually cycles, engage and disengage. not sure what is going on.

[@projectgoodspeed]

@johnrivera5361 the magnetic coil inside the compressor engages the clutch on or off depending on the relays. If the relay is good then you probably have a bad coil like i did. I made a video on how to check both on my channel….its literally my next video after this😅

[@javierdanieltosta621]

So you put 4oz for the entire ac system ?

[@projectgoodspeed]

@javierdanieltosta621 There abouts 👍 give or take 0.1 or 0.2 oz…lol i dont remember exactly what i said. But what i said in the video is ALL i added.

[@GruzDrajwer]

Hi, I'm from Poland and EG's aren't very common here. Can I install a 6th generation MB climate control unit in my Civic EG without any major issues?

[@projectgoodspeed]

@GruzDrajwer i dont think so. If you mean a 1996 and up civic? Then i dont believe the shape and layout is the same. Just googling the images, they look different.

[@m4jst3r32]

Also Pole here, and I just bought MB A/C for my little EG hatch, afaik it fits plug and play, also has cabin air filter. EDIT: I just saw that you have sedan, not hatch. They have a little bit different front end, so you need to check if hatch A/C fits sedan A/C, but if it does then it will also fit from MB.

[@JohnSmith-uz3zj]

Hey appreciate your response (to a different account) on the evap install video. couple questions: 1. Where can I source all parts cheaply? rock auto? It looks like I can't get linesets cheaply online. 2. What exact model cars can I get linesets from? any year del sol? only 94-95 due to R-134a? What about coupe and sedan 94-95 civics? thanks

[@projectgoodspeed]

@JohnSmith-uz3zj I wish!!! A kit would have made sourcing the parts a lot easier but i had to just keep an eye out for any part i could find at the junkyard… i think rock auto is gunna have the same issue. Not every part will be available. When i checked i couldnt find all the hoses i needed so it was easier and quicker to get them from a donor car at the junkyard.

[@JohnSmith-uz3zj]

@@projectgoodspeed Per my edit, can you please explain exactly which models and years should work? Thanks.

[@projectgoodspeed]

@JohnSmith-uz3zj Yeahh so im not too sure about the lines from a del sol or the underdash parts because they have a different dash layout than the 94-95 civic coupes/hatch/sedans. I know certain parts from the delsol would work but im not sure about the lines. In terms of sourcing the parts id say junkyards or facebook marketplace or offer up is gunna be best way to get all the parts. I dont know of any site that has it all. The models with interchangeable parts that i know of are the ALL from 94-95 civic coupes/sedans/hatchbacks. I sourced all my ac parts from atleast one of each of these models and ive been looking at tons of civics at junkyards and they all fit each other. So long as they use the same refrigerant r134a.

[@JohnSmith-uz3zj]

@@projectgoodspeed Okay so the engine bay/lineset for any 94-95 should fit a CX hatch? I guess if I can get a evap with box I will just have it ready in case I wanted to install AC later. Moreso after the filter for now.. but upgrading would be awesome.

[@projectgoodspeed]

@JohnSmith-uz3zj Yeahh thats how i got all my AC parts in my hatchback. As far as the evap box goes if you plan on installing ac in the future having the evaporator in the box already would make things a little easier BUT adding one in isnt gunna be hard to do later. The box comes out pretty easy…. Ive removed soooo many at this point it takes like 5 minutes in civics…. 10 minutes in crvs lol (if you dont want to damage any trim😅)

[@ricardosom7766]

This video es very good my friend. Well explained a lot of things so I’m hoping it’ll be a great guide on my project. I do have a 95 coupe without ac, booth a 92 hatchback with complete and functioning system and I’m transferring it that’s the term from the hatch to the coupe. Any advice or suggestions??

[@projectgoodspeed]

@ricardosom7766 Yeahh the 92-93 models have a different refrigerant than the 94-95 models sooo keep that in mind. The 94-95 is newer and much easier to obtain. Transferring everything over from one car to the other shouldnt be a problem just dont try and mix and match parts that are from different refrigerants👍

[@ricardosom7766]

@@projectgoodspeed great I’ll keep that in mind, now for the evaporator inside the 95 has it’s own, do I leave it in or I should I transfer the 92 one too to have everything in set. You know like evaporator, lines, condenser, compressor, dryer, etc. besides the refrigerant and don’t think I could have an issue with mix and match like you said because all parts are coming from same car.

[@projectgoodspeed]

@ricardosom7766 transfer everything!! Even though its the same car and everything will bolt in just fine, you dont wanna mix and match parts that have had ONE refrigerant running through it with ANOTHER part that has had another refrigerant through it! The parts will fit but the refrigerant doesnt mix👍

[@ricardosom7766]

@@projectgoodspeed hi my friend just wanted to share with you my situation and see what’s your suggestion. I was ready to transfer the system from 92 hatch to 95 coupe so u took of the first line, the big of from the wall behind the battery and before continuing I went to try in the coupe and found that the connector hole or whatever it’s called at the wall is wider and the line doesn’t fit. The line is a little thinner, so my question is should I replace that thing and the evaporator or the part it’s connected to? Or do you think it just won’t work for me?

[@projectgoodspeed]

@ricardosom7766 yeahh i read somewhere that that might happen with 92-93 civic parts when used for 94-95 civics. I would recommend using 94-95 parts honestly. I know you said your donor car is 92 soo in your case your gunna have to use everything from a 92 or 93 model and no mixing and matching hoses or parts just to be safe. I would recommend using 94-95 parts because its newer and use the newer more common R134a refrigerant also. But if you dont wanna buy the “newer” parts your gunna have to make sure all the parts you use (evaporator, condenser, lines, drier) are from a 92-93 model

[@b18turbo24]

I recently did the same thing..but now my compressor wont work on its own..relays are good,wires are good,fuses are good,i added freon by bypassing the compressor clutch..do u know if this might be a symptom of a bad pressure switch?..it blows cold air while its being bypassed but once i connect it back to the pressure sensor it stops working

[@projectgoodspeed]

@b18turbo24 I had the EXACT same problem… check out my other video on troubleshooting how i diagnosed my bad ac compressor..👍 basically it was the clutch on it

[@b18turbo24]

In my case everything is good..the clutch just doesn't turn on..i replaced the pressure switch n nothing..i tried hit wiring the pressure plug but theres no power going to it..maybe its my ecu? I heard the ecu controls the compressor clutch but not sure i have a gsr ecu with hondata s300 so idk if thats the issue!!😢

[@projectgoodspeed]

@b18turbo24 did you check the resistance on the coil that engages the clutch on the compressor??

[@k20eh2_]

Hello brother, I just bought a 92 eg hatch vx model. I have ac but it’s not blowing cold. I already recharged it and everything but it still not blowing cold air. Can you give me some tips of what it might cause for it not blowing cold air?

[@projectgoodspeed]

@k20eh2_ I meaan…. I can try, but im not really a mechanic so idk how accurate ill be. Lol After doing research on the AC system to install it myself, the main thing i can think of is ATLEAST one of your ac components isnt doing its job properly. (Expansion valve, compressor, drier, condenser, evaporator, or AC fan). The whole “cold air” process is a cycle that requires all of these parts to turn the refrigerant in the system into different states of matter, liquid or gas. With different temperatures, hot or cold. The compressor compresses the refrigerant into a dense hot liquid, it then flows to the condenser to cool it down but still remain a dense liquid. It then flows into the cabin where the expansion valve sort of turns the cooler liquid into a cool gas by pressurizing it. It then flows through the evaporator causing IT to get really cold because of the cold refrigerant gas running through it. And once the fan kicks in, blowing air through the fins of the evaporator, the end result SHOULD be you getting “cold air” out of the vents. BASED on this basic understanding, if you’re not getting “cold air” the first step id check is the compressor. Check the resistance of the compressor just to make sure the clutch is activating like its supposed to, i have a video on that on my channel. Thats probably gunna be the only thing you can check on that part but if the internal components of the compressor are faulty it really wont tell you much….sooo yeah. However in your case i would focus in the condenser. Since its job is too cool down the compressed hot liquid this might be a good place to start. Check the condenser itself for any cracks or dent or damage. Also check to see if your fan is kicking on with the appropriate resistance (ohm meter). Also check the relays are working and you dont have a blown fuse like i did.(also on my channel) After i installed my AC it was a pain to figure out why it wasnt working properly soo i know how you feel but like i said its a whole process that works TOGETHER…. AND without being able to inspect these parts especially cause the system itself is pressurized theres really not much i can recommend. Hope that atleast helps a little bit thoo. Take care👍

[@k20eh2_]

@@projectgoodspeed thank you! I will check it out! Love your videos btw

[@andreidragostoader5825]

I can help you out, do you have fb or inst or whatsapp

[@AndToTheRepublic4WhichItStands]

Wire loom comes split like that so the wires can be pushed in.

[@pm-qc5on]

For the ac belt what exactly does it go to? Just the pulley and compressor?

[@projectgoodspeed]

@pm-qc5on the ac belt goes over the compressor, the pulley, and the crank pulley where all the other belts are👍

[@pm-qc5on]

Ahh ok thank you

[@pm-qc5on]

Also my climate control has no ac button can I just remove the button and add the ac button it do I have to get a new climate control?

[@Busydadgarage717]

What fuses are blowing when the AC runs?

[@projectgoodspeed]

@Busydadgarage717 it was the one in the underhood fuse box.. 20A Fuse for Condenser fan. I went through quite a few of those 20A fuses😅

[@Busydadgarage717]

@projectgoodspeed have you solved the issue, or still having problems?

[@projectgoodspeed]

@Busydadgarage717 yeah i solved it.. i posted the steps i took to solve it in my other video. It was basically a bad compressor

[@CqR_Wicked]

Question: do you need to change the dashboard wireharnas as well? Plus for the ac-switch, do you need to hook that up to some wires as well? Or is there already an existing cable..:)

[@projectgoodspeed]

@CqR_Wicked From what i understand i dont think you need to do all that in terms of the dash harness. The 92-95 hondas i believe came pre wired for AC to be installed by the dealer as an optional extra. Soo… you should already be ready to go as far as that is concerned and a good way to check is to just remove your glove box and there should be a plug there where the thermostat for the AC would go!👍 (thats the only plug under the dash thats needed) As far as the AC-switch located on the Climate control box, im not entirely sure if its just plugging in an AC button/switch and its good to go…. I know some models came with a plug instead of the AC switch and I believe i read on a forum one time it is that simple but im not entirely sure. I mean its worth a shot if it saves you the price of replacing the whole climate control but since mine already had that button, i didnt need to go that route. (Replacing the whole climate control isnt that expensive or difficult either btw) If i were to guess tho i believe it probably should work since like i said these civics were designed to install AC at the dealership should you want that as an option, soo i dont think Honda wouldve have made things too complicated… hope that helps.

[@CqR_Wicked]

@@projectgoodspeedthanks man❤💪🏽

[@Iseekoutthetruth]

Check Your AC Pressure Switch, They Go Out And Will Not Kick On Your Compressor.

[@projectgoodspeed]

@Iseekoutthetruth That was the only part i didn’t know how to check tbh. Lol But the tech was able to get the compressor to turn on soo i “assumed” it was fine. Turns out my A/C compressor coil went out so the clutch couldn’t engage. Its fixed tho, thanks👌

[@kennynguyen5128]

Which car is best to get the ac bracket and pulley out of?

[@projectgoodspeed]

@kennynguyen5128 I believe the best option is gunna be 92-95 honda civics, the del sol models will work as well. Im not sure if the 96-00 civics have the same brackets even though theyre both D-Series. The same thing goes for the pulley. I havent tried comparing different model brackets and pulleys tbh thoo

[@AndToTheRepublic4WhichItStands]

Advance auto can look up how much pag oil your system needs.

[@projectgoodspeed]

@AndToTheRepublic4WhichItStands Damnn.. i did not know that. Ima check it out for next time, Thanks👍

[@AndToTheRepublic4WhichItStands]

@@projectgoodspeed Np man. I'm about to start dealing w this nightmare myself.

[@projectgoodspeed]

@AndToTheRepublic4WhichItStands Best of Luck!👍

[@muhtadin1220]

How about iacv & idle rpm?

[@projectgoodspeed]

@muhtadin1220 Well when i turned on the ac the instant i did i blew a fuse and got a really bad idle surge. 😅 but the surge went away if i turned off the AC. im currently in the process trying to troubleshoot some stuff and ill post it next week!👍

[@muhtadin1220]

@@projectgoodspeed nice sir, i have civic so4 and my idle drop when ac turned on

[@projectgoodspeed]

@muhtadin1220 ive done a little bit of research on it and i believe a change in idle is normal. the ECU should compensate for this tho and it shouldnt be too far off.

[@muhtadin1220]

@@projectgoodspeed okay sir, i'll waiting for next videos

[@mercpindi5522]

How much it cost

[@projectgoodspeed]

@mercpindi5522 that is a good question…i think the parts themselves if bought at the same junkyard can be as low as $300 (they a have an A/C package). I had to go to several different places tho (hoses, harness, compressor) and i also bought brand new stuff (exp valve, o rings, oil, drier, evaporator) so all in all about $400-$500 in parts (without AC recharge..) bought over several months. i spent a lot more though because of broken parts, diagnosis, ac recharge (twice), and ac collection lol i wouldve saved a lot of money buying stuff from only 1 junkyard but i couldn’t find a donor car with everything. It is what it is.

[@mercpindi5522]

@@projectgoodspeed its good u know how to do it otherwise its not possible for me to do it

[@projectgoodspeed]

@mercpindi5522 yeaahh it was definitely challenging trying to figure out how to do all this since i have little experience but it was cheaper than paying someone else to do it…😅 It took me months to collect all the stuff, made it easier on my wallet that way..😅

[@mercpindi5522]

@@projectgoodspeed thats not too bad.

[@mercpindi5522]

@@projectgoodspeed yeh for sure its a long term patience project

[@LawMasterTimmy]

Just about done with the a/c install in my 94. Was wondering if you charged the a/c yourself, if so how many Oz of r134a did you put in, and how much oil? Or do you only have to put the oil in the compressor?

[@projectgoodspeed]

@LawMasterTimmy I actually took it to a shop to let them charge the system with refrigerant. As for the oil, since i used mostly used parts they all had some traces of oil in them but i believe i did mention how many ounces i added to ONLY the compressor. I cant quite remember but it is in this video

[@Mr.IX9]

Excellent video!

[@ScionPinoy]

@projectgoodspped I’m trying to install a full AC unit on my 99 Honda civic HX. I almost have all the part. the only part I’m missing is the one u mentioned on the video u said sub harness it’s the one that plugs to the AC compressor and condenser fan? Where can u get that when removing those part from another 99 Honda civic I can’t located that sub harness. Can u please help me find that part or where can I get one? Thanks!!!

[@projectgoodspeed]

@ScionPinoy if you are talking about the short ac harness that connects the ac components to the rest of the engine harness? I would imagine it should be in the engine bay no?? Have you tried looking at the junkyard maybe other civics have one, they usually charge $25-$50 for a any engine harness. I would say try rock auto or ebay aswell.

[@ScionPinoy]

There was 3 Honda civics in the junk yard I went to and I don’t see those harnesses/relay. In this video the harness/relay is showing in time stamp 10:23 Please see if u can remember where is this located it’s the last part I need to complete the full AC unit thank you so much for your help and reply back.

[@ScionPinoy]

So I’m rewatched this video again and it shows that’s it’s located on the right side right next to the fan. Time stamp is 9:20 The problem is on the 99 civics is it located somewhere else because I didn’t see them in that same spot? This harness/relay is gona drive me crazy lol. Thanks again for all your help bro!!!

[@projectgoodspeed]

@ScionPinoy Yeahh idk what to tell you man.. lol😅 Cars are annoying, this series took me a long time to gather all the parts. The only thing i can say is those civics you checked probably had that harness already removed by someone. I came across the same issue when it came to finding a compressor..😅 the harness actually have relays attached to them so it’s probably cheaper to take the whole thing. Especially if you wanna keep things OEM!! Have you tried ‘Rock Auto’ they usually have a good selection on parts👍

[@ScionPinoy]

@@projectgoodspeed thanks for all your help bro!!! Let me look into that rock auto.

[@christopher4692]

Yo I did the same ‘99 conversion evap box but the water from the condensation is leaking all inside lmao did you have same problem?

[@projectgoodspeed]

@christopher4692 uhhh no. Lol it sounds like your box might be cracked, or the spout where it drains out could be busted, or the hose connected to the spout is loose and isnt draining to the engine bay properly

[@christopher4692]

@@projectgoodspeed it’s for sure not cracked but yeah ima double check that now

[@christopher4692]

@@projectgoodspeed it’s actually coming out of the cabin air filter cover. Drain must not be draining

[@projectgoodspeed]

@christopher4692 forsure, it could also be thats its clogged up inside the box with leaves and debris that might have gotten past the filter

[@christopher4692]

@@projectgoodspeed yeah I haven’t bothered checking but will today for sure

[@Loustylz203]

supposed to be around 6 oz total

[@kingjok3rz]

well done! Keep it up

[@neutronplayz7745]

do the ac lines from a ek fit an eg?

[@projectgoodspeed]

@neutronplayz7745 I don't believe so but im not entirely sure

[@theccwdad]

Well done dude🎉

[@ront5689]

There are new aftermarket condensers available. There is a brand called koolmax that makes them 👍😀😎

[@journeyquest1]

Yanked the ac out my CRX and i live where it gets really hot. Have another car with ac. Dont need it in my sports car.