This is fascinating. What is your background that you know all this?

 

Yeah this would take extensive knowledge and experience.; A project very few can partake. Pics?

 

Let’s see them pictures


Sent from my iPhone 13 Pro while on the toilet.

 

Some pics of the process, have more detailed info for whomever needs it.

 

Pics

 

If only you did a manual swap


Sent from my iPhone 13 Pro while on the toilet.

 

If only you did a manual swap


Sent from my iPhone 13 Pro while on the toilet.

r18 manual is very underwhelming to drive, i used to have one, i remember always thinking there’s no vtec, stock suspension is soft and bouncy, what’s the point, everyday i felt like i was in Russia or UK where manual cars are not exclusively a performance thing like in U.S.

 

Props to you OP! This could be very valuable to others looking to ditch the unreliable CVT.

 

Sure hope your still around? About to start the swap just looking for a Donner.

 

Have finished this swap, runs great, no codes. The CVT trans is garbage and expensive to replace.

Purchased 2015 civic bad cvt trans for very cheap.

Used 2012 civic trans, harness, shifter, cable, catalitic converter, steering rack computer, ecu, abs unit, tpms module, cluster and cv-axles.

Connector differs on the ecu, must repin the 14-15 connector A and swap with the plastic connector A from the 12-13. It's wire for wire the same, match colors and swap wire to the older connector.

Connector under the master cylinder must swap 3 wires on the donor harness.

Swap cluster, abs unit, steering rack computer, ecu. The modules from the 14-15 will throw codes, cannot communicate with the can bus on the 12-13 ecu. Car will run but dash will be a x-mas tree unless swapped.

Swapped shifter and cable from the 12-13 to show correct gear indicators.

Must use 12-13 catalitic for the dual 02 sensors.

Can use the ignition from the donor car to match the ecu so you don't have to worry about the security. I have a scanner so was easy to program the 14-15 key to the 12-13 ecu.

If your donor ecu has tpms you have to grab the module and pigtail and wire it in so the ecu can see it. There is connector M on the back of the interior fuse box, has 2 blank holes for the tpms wires, take connector apart and wire in blue and brown wires. Black ground to chassis, other 3 wires splice to obd2 connector, red, white, light blue.

(I'm looking to do the same swap at the moment but my civic is a EXL with push button start. Do you know how to still keep that option and what else would need to be changed/swapped?

 

No I don't, it might be as simple as plug and play, grab the column and key from the donor car, you will have the ecu as well so no programming. Check the harness pinout for the steering column. Honda is good about keeping the connectors the same with the same wires and colors in the same spot. Check the diagrams first.

 

This is a lot of work and takes some expertise not to mention a time and cost factor honestly your better off just buying a decent condition 12-13 and be done with it.

 

Also to note. Look at the date of the first post.

 

Some pics of the process, have more detailed info for whomever needs it.

nice work, i just finished doing the same swap, what i need is to figure out which 3 wires i have to swap on the plug under the master cylinder, i appreciate the info plz

 

1 yellow, 2 purple, and 15 orange. Depin donor side
1 , 2, 15 car side match colors
Donor side, engine side plug depinned to match the car side plug, match color to color.
Last pic is the one that has the pinout.

Another note:
When repinning the ecu plug if you turn the donor pins upside down and reinsert they will lock in once you push the white locking tab.

 

1 yellow, 2 purple, and 15 orange. Depin donor side 1 , 2, 15 car side match colors Donor side, engine side plug depinned to match the car side plug, match color to color. Last pic is the one that has the pinout. Another note: When repinning the ecu plug if you turn the donor pins upside down and reinsert they will lock in once you push the white locking tab.

Sorry to bug you but am stuck, on the donor harness I don’t see a purple or orange, I do see a solid yellow , on the car side I do see a purple and orange, and few yellows, The donor vehicle is 2012 and the vehicle it went in is a 2014 , am not good with electrical but I figured 3 wires wasn’t a big deal and is kicking my behind

 

Send me a pic of the front and back of your donor harness

Good afternoon, my car is the one that ALS is trying to fix. The problem that I understand is that we are going from a 2014 push start and the 2012 motor and tranny are keyed. I would appreciate any help that can be given to him. I desperately need my car back. The wiring is the hang up.

 

If you push the button does the engine turn over?

 

Do you have more info on this swap? Interested in going to non CVT due to cost of CVT (14-15) is outrageous. The components you replaced were they required or you replaced them as a precaution? Any help will be greatly appreciated.

 

donor ECU - need
donor harness - need for non cvt transmission plugs
donor shifter AND cables - need for d2 d3 etc cable is different aswell
donor cluster - need for proper shift indication
donor catalitic converter - need for correct o2 sensor location
donor cv axles - need, bought new they are cheap

steering rack ecu - ? maybe able to use the cvt steering rack ecu, I used donor
donor tpms module - ? dont need but wont have tpms function and tpms light will be on
donor abs module - probably don't need but cannot confirm, part numbers are different and junk yard says they are different, I used the donor