So just picked up a decent CRX...

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Old Sep 5, 2011 | 06:00 PM
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delsizzle1's Avatar
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Default So just picked up a decent CRX...

Well like the title said i just got a decent CRX off of craiglist...
and im lookin for a stock HF Harness so i can cut/add/lengthen so i can use for my b18c1 that came in the vehicle, im also willing to look at some harnesses that have already have been modified clean (not cut taped glued and ****ed up)
tryin to get the car up on its feet within the next two weeks ive been searching but no luck... im also goin to attempt to salvage this harness but its pretty bad, now back to hunting


Thanks,
shoot me pm's or a text too 951 807 0230 my name is frank, with either pic's links or details bout the harnesses thanks forum junkies lol





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Old Sep 5, 2011 | 07:31 PM
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Default Re: So just picked up a decent CRX...

that is a nice crx man. and you dont necessarily have to go after the hf harnesses. you can pick up a DX harness from the yard or a SI harness if your lucky and add/remove/Depin the existing harness and depin wire looms from the one you got from the junkyard and add onto the harness thats already in the car. it would take longer to do but it would look the cleanest. and also when you necessarily HAVE to cut a wire "cant get around it or have to lenghthen it then solder your wires together and heatshrink them. i just read a post someone wrote saying if you just twist and tape you add resistance to the wires which you DONT want. some of your sensors use resistance values to determine how much each sensor is experiencing and what not. and the added resistance will throw off your sensors and can cause check engine lights.
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Old Sep 5, 2011 | 09:02 PM
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Default Re: So just picked up a decent CRX...

Originally Posted by MISTAGLOCK
that is a nice crx man. and you dont necessarily have to go after the hf harnesses. you can pick up a DX harness from the yard or a SI harness if your lucky and add/remove/Depin the existing harness and depin wire looms from the one you got from the junkyard and add onto the harness thats already in the car. it would take longer to do but it would look the cleanest. and also when you necessarily HAVE to cut a wire "cant get around it or have to lenghthen it then solder your wires together and heatshrink them. i just read a post someone wrote saying if you just twist and tape you add resistance to the wires which you DONT want. some of your sensors use resistance values to determine how much each sensor is experiencing and what not. and the added resistance will throw off your sensors and can cause check engine lights.


yea i wasnt even thinkin bout doin the jimmy rigg way of twist and tape ima tech who does wiring every other day, so solder and heat shrink were in my plans but thanx for the info, not to familiar with ef chasis but this is goin to be a decent job to accomplish within the next two weeks, and i heard if i do try to use a SI harness that it isnt goin to do me any good due to some connectors not matching up and what not and i was also recomended to go with an HF harness overall all of em from a couple a buddies who have done some ef chasis swap's but thanks for the info bro
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Old Sep 5, 2011 | 11:04 PM
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Default Re: So just picked up a decent CRX...

Are you talking just engine harness or all of the harnesses? I will assume you mean the engine harness.

We mixed an HF engine harness (modified for a B16A headed B18C1 block) with an SI main harness in our 88 HF car. We are running an OBD1 P72 ECU, so we also had to add OBD1 signals. There are a bunch of subtle differences between the different versions. For example, we had to run the white igniter wire from one side of the engine to the other in order to get the harnesses to properly mate. You also need to make sure you account for things that are different from model to model. For example, the HF has an EGR system, but the DX and SI don't. The DX has dual port fuel injection, so you will need to convert the harness for 4 injectors, etc.

I'd strongly recommend using an HF harness if you can find one. It will make it a lot simpler. If you can't, I'd recommend using an SI harness, which will require some repinning and the re-routing of the ignitor wire from one side to the other. If you must us a DX harness, be prepared to make even more mods, including DPFI to MPFI conversion.
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Old Sep 5, 2011 | 11:14 PM
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Default Re: So just picked up a decent CRX...

Originally Posted by MarkOlson
Are you talking just engine harness or all of the harnesses? I will assume you mean the engine harness.

We mixed an HF engine harness (modified for a B16A headed B18C1 block) with an SI main harness in our 88 HF car. We are running an OBD1 P72 ECU, so we also had to add OBD1 signals. There are a bunch of subtle differences between the different versions. For example, we had to run the white igniter wire from one side of the engine to the other in order to get the harnesses to properly mate. You also need to make sure you account for things that are different from model to model. For example, the HF has an EGR system, but the DX and SI don't. The DX has dual port fuel injection, so you will need to convert the harness for 4 injectors, etc.

I'd strongly recommend using an HF harness if you can find one. It will make it a lot simpler. If you can't, I'd recommend using an SI harness, which will require some repinning and the re-routing of the ignitor wire from one side to the other. If you must us a DX harness, be prepared to make even more mods, including DPFI to MPFI conversion.

yea im willing to take all this on and trying to fiind a how to on this forum to help out a lil on the conversion from DPFI to MPFI, and no luck... but im still looking this is my first ef chasis ive ever worked on so alot of things similar to that of eg and ek but has its differences for sure... thanks for the info and if you got more to shoot fill free it is much appreciated bro
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Old Sep 6, 2011 | 12:28 AM
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Default Re: So just picked up a decent CRX...

honestly take your stock harness and fix it. solder all the connections, or better yet do what i did. i had a stock si harness, and a stock obd1 vtec harness. i depinned all the dizzy wires and vtec wires from the obd1 harness and pinned them into the stock si harness. got rid of a bunch of cut/sketch wires. same for the 4 wire o2 sensor. either de pin the stock one wire one and pin/solder in the 4 wire, or run it through a separate plug to the jumper harness, since obd1 jumper harnesses come with separate wiring for the heater and grounds. injector wiring can be used from the obd1 harness and so can the alternator plugs.

the most important part though is you need to know what body harness is your car. you can't use an hf/ex/si engine harness on a dx crx unless the body harness has been swapped with a factory mpfi harness.
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Old Sep 6, 2011 | 04:11 AM
  #7  
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Default Re: So just picked up a decent CRX...

There are TONS of write-ups on this as it's been covered a zillion times... here you go...

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/88-91-crx-ef-civic-frequently-asked-questions-faqs-1508680/

Do NOT try and use any engine harness other than what your factory harness is - It will NOT plug & play. Just use your factory harness and add wires as needed... if you do what you say you do, then this is as basic as it gets... Wiring 101.
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Old Sep 6, 2011 | 07:35 AM
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Default Re: So just picked up a decent CRX...

Originally Posted by DCRB
honestly take your stock harness and fix it. solder all the connections, or better yet do what i did. i had a stock si harness, and a stock obd1 vtec harness. i depinned all the dizzy wires and vtec wires from the obd1 harness and pinned them into the stock si harness. got rid of a bunch of cut/sketch wires. same for the 4 wire o2 sensor. either de pin the stock one wire one and pin/solder in the 4 wire, or run it through a separate plug to the jumper harness, since obd1 jumper harnesses come with separate wiring for the heater and grounds. injector wiring can be used from the obd1 harness and so can the alternator plugs.

the most important part though is you need to know what body harness is your car. you can't use an hf/ex/si engine harness on a dx crx unless the body harness has been swapped with a factory mpfi harness.

thanks

Originally Posted by N3va3vaSatisfi3d
There are TONS of write-ups on this as it's been covered a zillion times... here you go...

https://honda-tech.com/forums/showthread.php?t=1508680

Do NOT try and use any engine harness other than what your factory harness is - It will NOT plug & play. Just use your factory harness and add wires as needed... if you do what you say you do, then this is as basic as it gets... Wiring 101.


alright koo bro thanks
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Old Sep 6, 2011 | 07:38 AM
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Default Re: So just picked up a decent CRX...

Clean CRX for a nice build. GL
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Old Sep 6, 2011 | 08:12 AM
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Default Re: So just picked up a decent CRX...

Good find! What did you pay for it (if you don't mind my asking)?
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Old Sep 6, 2011 | 09:36 PM
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Default Re: So just picked up a decent CRX...

yeah man. ask your mother /grandmother if they have a thick sturdy sewing needle and a thin sturdy one and familiarize yourself with those connectors. the CLEANEST look is going to be Depinned and repinned wires and the heatshrink n solder job. but depinning is less pain in the *** than trying to rewire ****
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Old Feb 22, 2012 | 04:44 PM
  #12  
delsizzle1's Avatar
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Default Re: So just picked up a decent CRX...

so i know its been a couple months but ive have been rigorously adding/taking off/hunting/buying/trading/custom making alot stuff to this bad boy but now its officially on the streets and running real good

i can finally i have put together and still in the process of building my crx for my girlfriend lol, yep thats right this is for my girlfriend...

so i just hope she doesnt crash it or get it stolen, but ill be taking care of that within these next couple days... but here are some pics of what its looks like now enjoy fellow forum trolls...










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Old Feb 22, 2012 | 04:53 PM
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Default Re: So just picked up a decent CRX...

forgot to snap some pics of when the whole interior was going under construstion as well....

but heres a rough description: re-wired under dash harness, wired in radio,found and wired up climate control,
found another cluster and using my existing one took parts from both to make one complete cluster thats fully funstional, wired in rear speaker (custom made bezels for the rear 6 1/2 speakers because i couldnt find the pods anywhere), rear disc crx si-r swap, cleaned out all the brake fluid that leaked into interior due to broken lines, relocated battery properly using a pep boys battery relocation kit and some heavy duty high performance stereo wire, found a clean all black glove box,



only things left to do is swap out old prop valve to an integra all wheel disc prop valve, install new charcoal canister then re calibrate the ignition timing, clean up vaccum lines a bit and wiring along the pcv hose from valve cover to my aem cold air intake and then finally take it the dmv and get this *********a BAR'd and get my fancy lil sticker
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Old Feb 23, 2012 | 04:09 AM
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Default Re: So just picked up a decent CRX...

Nice work! She'll love it.
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Old Feb 23, 2012 | 08:32 AM
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Default Re: So just picked up a decent CRX...

Very Nice man keep up the great work I love to see a good rex build
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Old Feb 23, 2012 | 06:59 PM
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Default Re: So just picked up a decent CRX...

Originally Posted by MISTAGLOCK
that is a nice crx man. and you dont necessarily have to go after the hf harnesses. you can pick up a DX harness from the yard or a SI harness if your lucky and add/remove/Depin the existing harness and depin wire looms from the one you got from the junkyard and add onto the harness thats already in the car. it would take longer to do but it would look the cleanest. and also when you necessarily HAVE to cut a wire "cant get around it or have to lenghthen it then solder your wires together and heatshrink them. i just read a post someone wrote saying if you just twist and tape you add resistance to the wires which you DONT want. some of your sensors use resistance values to determine how much each sensor is experiencing and what not. and the added resistance will throw off your sensors and can cause check engine lights.
when you also add length you add resistance, and the opposite when you make the wires shorter
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Old Feb 23, 2012 | 09:17 PM
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Default Re: So just picked up a decent CRX...

i have no issues with any vehicle i have ever done any kind of wiring troubleshooting/lengthening/shortening but all i can say is as soon as i fix my vacuum leak with the charcoal canister and re adjust timing this thing is going to fly awhole lot better then it already is....


i love this car i dont wanna let it go lol
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