cool!

I am going to look at this later on tonight and compare my notes

 

cool!

I am going to look at this later on tonight and compare my notes

Nikos, thanks for your help, too....:up:
It was easier than I expected.

 

thanks alot...I am going to try this and maybe post up some pics to have a better understanding

 

thanks alot...I am going to try this and maybe post up some pics to have a better understanding

Hey, good luck. Once, you build one, you'll fully understand the wiring. Let me know if you need any help. :up:

 

ineed pics???

 

pics would be great.

 

sweet dude now do one with a k24a4 into a ek with a jdm ecu.

 

I took the general plans for this EG harness and made an effort to adapt it to a 4g EF/CRX. I'm looking for feedback from others, and perhaps someone to check it over for errors........so chime in. It's not tested, or even finished.

***see below for updated image/schematic***

I'm unsure of the VSS tap to the speedo. The stock EF cluster would be providing the stock ecu with a VSS signal. Is that what the RSX ecu is looking for, and is the EF signal compatible?

I'm unsure of whether or not the EF main relay terminals are exactly the same as the EG main relay terminals (which I assumed). Can anyone confirm, offhand, that they are?

I'm thinking that fanC to ecu plug position B4 is redundant, since the fan wiring on the EF is stand alone. Confirm?

I'm thinking that the following wiring/circuit items will need to be stripped from the standard EF engine harness:

-back up light wiring
-coolant temp for cluster
-coolant fan wiring

Am I missing anything there?

 

see this is what this forum needs.. I already bought a damn hybrid harness and its not even plug and play.. I still have to wire about 14 wires.. that includes 02 sensors.

 

"I'm unsure of the VSS tap to the speedo. The stock EF cluster would be providing the stock ecu with a VSS signal. Is that what the RSX ecu is looking for, and is the EF signal compatible?"

yes tapping the vss from the cluster will work.

 

"I'm unsure of the VSS tap to the speedo. The stock EF cluster would be providing the stock ecu with a VSS signal. Is that what the RSX ecu is looking for, and is the EF signal compatible?"

yes tapping the vss from the cluster will work.

Thanks for that - one less thing to figure out.:up:

I checked out the helms manual regarding the main relay terminal functions. The ones jumpered turned out to be the same, although the main relay on the EF isn't exactly the same as on the EG. I updated the schematic to include the correct EF main relay terminal description/pinout.

****see update below*******

Does anyone have any information about the back up light wiring. Meaning where it comes off of the engine harness (through the passenger side firewall plugs?)?

Also, what about the fan/thermoswitch wiring. I'm thinking it should be straight forward to pull out of the engine harness. I was wondering why some of the manufacturer harnesses have two ground tabs (little rings to bolt to chassis for ground). I thought the fan wiring circuit only required one ground. Does anyone know more?

I took the info about using fanc w/ kpro from this thread:
http://www.k20a.org/forum/showthread.php?t=8430 ;
It outlines how to use the fanc pin to ground the switching side of a relay.

Here's a link for cluster pinouts - needed for tapping to guage cluster;

http://b16a.honda-perf.org/cluster.html

If someone could supply(sell) me an E plug, I'd make a harness and post up pics.

budget k swap FTW!!!!!!!!!

EDIT: I didn't make a note about wiring up ELD, since I'm in Canada. Position 15 on the E plug would need to be connected to pin B19 @ the ecu harness plugs if you have a car equipped with an ELD (U.S.).

 

Added info for reverse light connection and some info specific to using harness with a type r ecu:

Still missing info on the fan wiring and guage temp guage pin location @ shock tower plug(although you could tap it directly to the cluster). I'll add it if i figure it out.

 

sickining thread!!! :up: :up: for making your own harness

 

sickining thread!!! :up: :up: for making your own harness

I just got my C101 plug and the DLC hasn't arrived yet, but it's mostly finished. I didn't connect the EF driverside (edit: meant passenger side) shock tower plug(s) yet - will splice them in during install (once I have all swap parts). The second O2 isn't wired (kpro). Worth it for the cost savings and the understanding gained as to how the engine interfaces with your car electrically - in case of future troubleshooting issues.

The second terminal ring (@ the e plug) is for the DLC ground. The fan switch wiring is independant of the swap harness - just ground one end of the plug and tap the other end at the appropriate shock tower plug (which one depends on model) to complete the fan switch cooling circuit. The same goes for the guage coolant temperature circuit.

Thanks to the OP. This helped me save some $$:dance:

 

hey cool post!!!

 

Oh snap, I will be trying to attack this DIY harness soon

 

I am about to attach some good info too

 

Good info :up: :up:

 

Great info:up:

 

I ended up making a k20a2 conversion schematic for a '99 automatic CDM EK, as well. I used the hasport guide, the hondata diagram and the actual chassis (friends EK) to figure out the proper connections.

I am about to attach some good info too

About using the chassis' main relay and just adding a single extra relay for O2 heater into the conversion harness?????? I was thinking about trying to figure that out, but haven't had a chance to look at it yet.

Also, I was wondering about properly powering the sensors/coils(pins 9, 14, 20 of RSX C101) using a single circuit and just using a 30 amp inline fuse for that circuit. I made my EF harness that way, but after making the EK schematic and looking at Hasports guide for the EK, I was wondering if that might be a bit hazardous?

 

thank you so much for taking the trouble to do up the diagram

i've saved your diagram for future reference

 

It's been awhile since I check this post.... EF an EK info added with better pics.:up: Once, I finish my K24/k20 build up. I'll try and take pics for wiring in a DC2.:dance:

 

Good stuff Thank you.

 

Here's a good place for wiring - just to keep all wiring info in this thread (I think I posted it elsewhere):

http://www.vehicle-wiring-products.co.uk/VWPweb2000/cables/cables.html

They're the only place I found that sells all the color/striping combinations required in whatever lengths you need/want. All of the wiring for the EK harness I just started cost me $40 ish shipped (REF16 - 42 meters in 25 different striping/color combinations). Shipping was five days (excellent time since they're in the UK).

Also, I've been working on a digram that uses just one relay for the EK. It's not finished, but I'll post it up sometime to see if anyone is willing to help me figure it out.

 

here;s the one for eg using a rsx type s ECU

 

here;s the one for eg using a rsx type s ECU

see how it says pin # 15 goes to C302 # 2 pin. is the 15 a type o? cus if u look at the image for c302 # 2 pin. it says it goes to E plug pin # 10. i just want to make sure the info was right.