DIY: S300 into Virgin P28 Very Detailed

s300 and SManager software questions & answers
JDMLyfeStyle
Posts: 45
Joined: Sun Jun 26, 2005 1:26 am

DIY: S300 into Virgin P28 Very Detailed

Post by JDMLyfeStyle » Thu Sep 08, 2005 9:45 pm

This is a Tru DIY. Not everyone has a Expensive Desoldering station. so Dont hate when i do these write ups. This is for the Real DIY guys on a budget

Also do not copy any of my images or copy this write up to any other website without my consent. I monitor all my bandwith and see where it goes.

Warning attempt this at your own risk. I am not responsible if you damage your ecu or car in any way. I am not liable for your Mistakes. By doing this you do know that you are messing with the computer that operates your car. if you mess up in any way you may cause damage to your Vehicle. Once again attempt this at your own risk. if you dont feel you can do this leave it to the professionals.

Tools that are needed for this project are:

1. A Hondata S300 Unit
2. P28 ECU
3. Soldering Iron
4. Solder
5. Desoldering braid
6. Dremel with cutting disc
7. Phillips Head Screw Driver
8. Pen or Sharpie marker
9. Magnifying glass

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Ok Now to the write up

Step 1. Remove the 5 Screws on the top side of the ecu as labeled in the picture


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Step 2. Remove the 5 Screws on the bottom side of the ECU.

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Step 3. Look at the front of the ECU. see where the ECU plugs are and there is a screw to the right. Loosen that screw.

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Step 4. Remove the 7 screws holding the ECU board to the casing. Some may not like this step but i prefer it for easier access.

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Step 5. Gently Remove the ECU board from the cage. Now you will be left with the ECU in 4 parts. the top cover, bottom cover, case, and ECU board. Be sure the ECU board is placed on a Very Very Clean Spot.

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Step 6. Ok now turn on your soldering iron. Some dont have adjustable temperatures. mine does. Im use to my 650 degree setting. Also be sure your Sponge is wet!

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Step 7 Ok now when you look at the ECU board this is what you are going to see. Now look at the 2nd picture the area's Highlighted in Red are the area's that we will be working in.

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Step 8 Now its time to get to work. Look at the area on the board. you can loacate the CN2 in the lower left hand of the picture. Take your Desoldering braid and Lay it over the CN2 part of the board. the place the soldering iron on each of the solder'd spots. wait til all the solder is soaked up and you should be left with a hole.

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Step 9 Ok Now take your 4 head pin. and place it so that it is in the board. CN2-1 thru CN2-4. So on the CN2 board it should be like this. XXXXO ... the O is showing that it is still empty and nothing is installed into it. Now once the 4 pin is installed into the slots. then flip the board over and solder the 4pin to the board. Be sure not to burn any of the tracks and do not allow the solder to connect the 4 pins together. There should be a space between each pin.

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Step 10. IF your ECU was previously Chipped Skip this step. Now move Over to the 74HC373 location on the board. if you are having trouble finding it refer to the pix above on the highlighted areas. Now desolder all 20 spots on the board. now it should look like this.

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Step 11. Place the Chip that was provided by Hondata into the 74HC373 spot that was just Desolder'd. Be sure that the Notch is facing towards the ECU plugs. Then just flip over the board and solder in the chip. be sure that u do not connect any of the solder joints.

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Step 12. Ok Now its time to move Over onto the 27256 Spot. Now you need to desolder the 28 pins. If your ECU has a ZIF socket installed already then once it is desolder'd remove the ZIF

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Step 13. Now take the 2 14 pin Male Heads and install them into the board. The short part goes through the board. Once there in place then Solder them to the board. Be sure not to connect the solder joint.

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Step 14. Look right above the 27256 spot you just finished up on. You should see the J1 location, R54 Location. Desolder both of these locations.

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Step 15 Now place a the resistor provied with the Hondata kit in the R54 spot. Then take a Piece of thin wire or solid line and place it into the J1 spot. If you ever want to return to the stock program you will need to cut the j1 jumper.

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Step 16 Ok Now its time to move to the Last spot on the board. Locate the J12 Jumper. Take and desolder that location and remove the jumper so that its just 2 holes sitting there. this needs to be removed so that you can datalog properly.

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Step 17 Now place the ECU board back into the ECU case. and just install 4 screws to hold the board to the case. DO NOT install the top or bottom covers.

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Step 18 Line up the 4 pin socket on the S300 unit and once you get the tips of the pins into the socket. then the 28 pin should line up as well. GENTLY press the hondata unit onto the pins.

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Step 19 Now if you look there is no possible way to connect the Hondata to a laptop. We have to cut a hole in the side of the ECU. So grab your pen or marker and mark the area around where the USB goes.

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Step 20 Now remove the ECU board out of the case by removing the screws. You dont want metal or debri getting onto the ECU.

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Step 21 Grab your dremel and cut out where you marked. and be sure to leave some play so the cord can move without rubbing the metal.

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Step 22. Now Put the ECU board back in and Put all the screws back in place. then put on the top and bottom covers on and be sure to tighten the screw on the front of the ECU by the plugs. I went ahead and made a Clear ECU cover cause i just like the look and i like to see whats on the inside.

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NOW GO TUNE YOUR POS CAR :P

CivicVTi
Posts: 287
Joined: Mon Dec 15, 2003 1:51 pm
Location: Athens, Greece

Post by CivicVTi » Fri Sep 09, 2005 1:38 am

Excellent write up! Thanks!

ps: where did you get the plexiglass cover? I want one 8)

JDMLyfeStyle
Posts: 45
Joined: Sun Jun 26, 2005 1:26 am

Post by JDMLyfeStyle » Fri Sep 09, 2005 10:20 am

i made it my self out of some 1/8" glass from the hardware store

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Hondata
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Post by Hondata » Fri Sep 09, 2005 3:28 pm

Nice write up.
Hondata

gforceinteg
Posts: 23
Joined: Sat Sep 10, 2005 8:57 pm

Post by gforceinteg » Sat Sep 10, 2005 9:00 pm

Very nice, Thank you for taking the time to make this.

Now can we mount some leds in the sides of the case and neons like people do for home computers LoL.

ridewhencan
Posts: 61
Joined: Mon Nov 22, 2004 5:44 pm
Location: CT

Post by ridewhencan » Mon Sep 12, 2005 6:43 pm

Nice write up. Helps me know I did the right thing letting hondata do mine (when I get it, that is, which should be friday.) I got a kick out of the rest of your site as well.

JDMLyfeStyle
Posts: 45
Joined: Sun Jun 26, 2005 1:26 am

Post by JDMLyfeStyle » Thu Sep 22, 2005 2:13 pm

Im going to mount 4 red LED's in there to give it a nice light at night.

4whldft
Posts: 3
Joined: Sun Nov 13, 2005 10:35 pm

thanks

Post by 4whldft » Sun Nov 13, 2005 10:39 pm

:D
i just followed your steps on chipping a p28 for s300. very nice......
single cam vtec on boost is fun

JDMLyfeStyle
Posts: 45
Joined: Sun Jun 26, 2005 1:26 am

Post by JDMLyfeStyle » Mon Nov 14, 2005 12:45 pm

Glad it helped out :)

dc2quick
Posts: 13
Joined: Tue Nov 29, 2005 8:16 pm

Post by dc2quick » Tue Nov 29, 2005 9:37 pm

is this the same procedure for the p72?

kesnut
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Location: Trinidad W.I.
Contact:

Post by kesnut » Wed Nov 30, 2005 2:52 pm

so who goin to do the P30 and P08 write-ups.... :wink:



updated
can some one send me the dimimsions on the s300...
i think i can make it fit...
thankz

dc2quick
Posts: 13
Joined: Tue Nov 29, 2005 8:16 pm

Post by dc2quick » Fri Dec 09, 2005 7:15 pm

For Spot 74HC373, is it okay to use SIP sockets or DIP sockets in this location and just stick the chip in the socket? i think it would be a lot easier if say i want to remove it and also it's a lot safer during installation. I gain about an 8th of an inch taller but i need to know if clearance is a problem since it's sitting directly under the s300.

kaj
Posts: 98
Joined: Mon Nov 21, 2005 4:47 pm

Post by kaj » Thu Dec 22, 2005 5:03 pm

dc2quick wrote:is this the same procedure for the p72?
anyone?

kaj
Posts: 98
Joined: Mon Nov 21, 2005 4:47 pm

Post by kaj » Sat Dec 24, 2005 2:21 am

also: what is the sponge for?

dc2quick
Posts: 13
Joined: Tue Nov 29, 2005 8:16 pm

Post by dc2quick » Sat Dec 24, 2005 11:34 pm

the sponge is for removing any buildup of oxide on the tip while soldering.

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