p12 ecu automatic to manual

[CB7<3]

Hey my CB7 lovers I Found a thread on here awhile back but cant seem to find it... it was to convert an automatic p-12 ecu For use in a manual CB7?

[drew12000]

No converting necessary. Auto p12 will work with manual cb7.

[dj_ender]

No converting necessary. Auto p12 will work with manual cb7.

Define "work". Yes it will run the car...but, it causes a bad idle, it can cause an erratic idle, and causes bad mpg. So if you don't mind that stuff, it will "work".

[Jarrett]

Not to mention the op said he found a thread specifically detailing the conversion process. That should have been a tip-off that there was something out there.

OP, if you don't find anything send a pm to cloudasc. He's very familiar with the PT3/PT6 so he likely knows what's involved for the others also.

[dj_ender]

I've never seen a write-up for a P12, but I have for P06/P28/P75. They aren't the same steps.

[GhostAccord]

Join PGMFI.org and look through the library. I know that there is a DIY on there somewhere for the small box ECU's. P13/P13 JDM etc etc.... I would take the time to find a link but you have to be a member to see it anyway. Might as well look through the DIY library yourself and learn a few things.

I used the small box DIY not to long ago on a P13 and it works just fine. No CEL and no timing or idle issues.

[plee3]

I remember creating a thread for this but its long gone now. Here goes the written proceedure:

Most Auto Ecus have a jumper at RP11 and have a blank space at RP12. Move RP11 to RP12 and you now have a Manual ECU. Here a closeup of the JDM Jumper configuration: Auto Jumpers


R96, C49 and R82 seem to be related to some Auto trans controls but can be left in place.

Some ECUs (Like the JDM P13-900) have resistors in both places. You can just remove both of them and replace RP12 with a jumper wire.

This applies to all ECUs that share the same board (P11, P12, P13, P14 and P39)

[Mishakol129]

I remember creating a thread for this but its long gone now. Here goes the written proceedure:

Most Auto Ecus have a jumper at RP11 and have a blank space at RP12. Move RP11 to RP12 and you now have a Manual ECU. Here a closeup of the JDM Jumper configuration: Auto Jumpers


R96, C49 and R82 seem to be related to some Auto trans controls but can be left in place.

Some ECUs (Like the JDM P13-900) have resistors in both places. You can just remove both of them and replace RP12 with a jumper wire.

This applies to all ECUs that share the same board (P11, P12, P13, P14 and P39)

I would really like to learn how to do this. I have a P12 auto and am doing a 5 speed swap. Is there a write up on this? I know there is one for a civic but its not the same thing.

[GhostAccord]

I remember creating a thread for this but its long gone now. Here goes the written proceedure:

Most Auto Ecus have a jumper at RP11 and have a blank space at RP12. Move RP11 to RP12 and you now have a Manual ECU. Here a closeup of the JDM Jumper configuration: Auto Jumpers


R96, C49 and R82 seem to be related to some Auto trans controls but can be left in place.

Some ECUs (Like the JDM P13-900) have resistors in both places. You can just remove both of them and replace RP12 with a jumper wire.

This applies to all ECUs that share the same board (P11, P12, P13, P14 and P39)

I would really like to learn how to do this. I have a P12 auto and am doing a 5 speed swap. Is there a write up on this? I know there is one for a civic but its not the same thing.

What you quoted is the write up...nothing else to it... remove a couple resistors and add a jumper.

[Mishakol129]

What you quoted is the write up...nothing else to it... remove a couple resistors and add a jumper.

Add a jumper? Pics would help a lot. I am inexperienced in soldering too but I am sure I can do it.

[GhostAccord]

Add a jumper? Pics would help a lot. I am inexperienced in soldering too but I am sure I can do it.

Well then you should learn to solder and the basics of electronics first. There are a few videos on the net for that. If you have to ask what a jumper is, I wouldn't suggest modifying the ECU yourself.

If you want more in depth information about ECU modification you should join PGMFI.org. Lots of pictures and information there. Other than that, open up your ECU cover and find the related resistors and have at it.

[Mishakol129]

Well then you should learn to solder and the basics of electronics first. There are a few videos on the net for that. If you have to ask what a jumper is, I wouldn't suggest modifying the ECU yourself.

If you want more in depth information about ECU modification you should join PGMFI.org. Lots of pictures and information there. Other than that, open up your ECU cover and find the related resistors and have at it.

Honda tech has a write up on this with some good pics. So this is what jumpering is eh?

http://honda-tech.com/showthread.php?t=2969571

[GhostAccord]

A jumper is anything that will bridge or jump an open point or close a circuit with no resistance. There are 3 jumpers in that picture. Can you point them out?

On a side note...I prefer a solder sucker over that PITA copper wick/braid that they use in that thread. You need to use way more heat using it. This is my personal preference and it is something you will find out on your own once you start soldering.

My suggestion is to find an old mother board or burnt out ECU and practice removing and installing components. An adjustable soldering iron is a must.