need B20A1 ECU pinout!!!URGENT!!!

[skyca5]

:sad2: last week i bought a B20A1 halfcut.
the ECU now is missing
now i need the compatible ecu pinout coluor or diagram to connect the wire back....

i don't know what year is???

[3G Jester]

are y6ou in the us? doing a b20 swap? good luck.
maybe rob, or someone here can help you out.
http://www.3geez.com/showthread.php?t=38047&

[thegreatdane]

I edited one of the existing pinouts to match the B20A1 specs: http://home.tiscali.dk/uplort/Forum/b20a1-pinout.htm

And yea where are you from?

[skyca5]

I'm from malaysia
thanks for all your help.
i will try my best to connect it back.
my valve cover is gold colour.is there any different in ecu???

[thegreatdane]

What ECU do you have? The B20A1 uses the PJ5 ecu. A regular A20A3/4 use the PJ0 ecu. You can use the PJ0 ecu but you will lose function of the secondary air vavle and will have to disconnect it.

[skyca5]

Today i get a new ECU from the junkyard that i bought the halfcut
there is a serial number 37820-PH3-043
J 303
date of manufacture 23/7/1986
at the side of the ECU there is 2 LED
one is ignition(IG) and the another one is Fuel Injection(FI)
there is no serial number at previous ECU,sorry about that...
the engine number is B20A-1554998

[skyca5]

The previous ECU there is only 1 LED at the top

[thegreatdane]

The new PH3 ECU that you purchased, controls both ignition and injection. If your distributor on your engine has vacuum lines going to it, you cant use the PH3 ecu (or at least you shouldnt), if your engine does not have a vacuum advance ditributor the PH3 ecu is the right one.

So what distributor does your engine have and what car is the engine going in?

[shinyoong]

Dear aall,
I need help urgently, i would like to ask who have experience install Greddy E-Manage blue edition on B20A 2.0SI PH3(1 LED indicator) CA3 Accord?

I hv done the Turbo mechanical parts installation, but once the turbo boost engine check lamp will bright. As my frenz advice using Emanage too cheat the original ECU, but now the problem is the mechanic can get the PH3 ECU diagram, so my car is pending now.

thanx bud.

[shinyoong]

By the way, post some pic to share bout my car.

ooh ya, i am Malaysian .
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6726bl.jpg
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6747.jpg
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6711.jpg
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6710.jpg
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6707.jpg
http://i68.photobucket.com/albums/i21/shinyoong/install%20Turbo/IMG_6702.jpg

[MessyHonda]

:welcome: man your car looooks sooo HOT!

[reanimator420]

sex

[thegreatdane]

nice another B20A turbo, welcome!

I think the 88-89 prelude PK2 ecu pinout is almost the same, but I cant say for sure since I dont think anyone has ever been able to get the 88-89 PH3 ecu pinout. Here's the prelude pinout made by carotman: http://pages.infinit.net/omus/1989B20A5pinout.html

[carotman]

I think the 88-89 PH3 pinout is the same. I have both ECU here and the board is very similar. Just a few differences. Too few to change the pinout.

[shinyoong]

I think the 88-89 PH3 pinout is the same. I have both ECU here and the board is very similar. Just a few differences. Too few to change the pinout.


Thanx all, yesterday done all the wiring already, now the problem is the emanage unit cannot work well. connect with laptop cannot detect the setting we set. but its can work well with my fren emanage plug on my car. so now wana try to claim it.

[AccordB20A]

hey guys, thought i would tack onto this thread. i need a gold top b20a ecu pinout for a 1986 2.0Si honda accord. i cant find one on the whole internet

[TWOLOUDNPROUD]

hey guys, thought i would tack onto this thread. i need a gold top b20a ecu pinout for a 1986 2.0Si honda accord. i cant find one on the whole internet

I got your PM i read that you can use a resister 2-4ohm to trick the ecu that the iac is there you might want to try that.

[A18A]

heres a edm one http://home.tiscali.dk/uplort/Forum/b20a1-pinout.htm ive seen a jdm one but cant remember were, they might be teh same

[AccordB20A]

the EDM one doesnt have the ignition map in the ecu. thats thats the part that doesnt work. i get an error code on the ig LED it flashes 4 times. the FI led doesnt give a code at all.
I would still like to run my 85 ecu. man i wish there was a pinout somewhere lol

[thegreatdane]

What is the scenario here? Are you trying to use an '85 B20A ecu on an '87-'88 B20A

[thegreatdane]

I made this a while ago when I hooked up my 2 led PH3 ecu. I couldnt get rid the egr error since I dont have an egr so I junked that idea. But other than that I had it working correctly.

http://img525.imageshack.us/img525/5126/b20aelectronicignitionsj0.jpg

[AccordB20A]

thanks for that ill try that today. Ive noticed the 88-89 blacktop accord b20a has teh same pinout as the jdm b20a5 prelude cause i plugged a PK2 ECU straight in and it fired up. I need to make this blacktop run from this older PH3 ECU. i will see what i can do with that wiring diagram you made thanks

[carotman]

yes, the PK2 and 88-89 PH3 ECU are the same, They have the same internals, just different "options" soldered in them. the PH3 has only 1 O2 sensor. That the only real difference.

[AccordB20A]

well thansk to the diagram thegreatdane posted i got my car ruinning. its simple as. i should allmost make a wiring diagram up so anyone else doesnt have this problem. No more error codes for me woop woop

[AccordB20A]

okay i just took the ED M b20a ecu pinout and added the mssing wires so nobody in the future will have this problem.
http://imagehost.wohdog.sytes.net/1986%20B20A%20Gold%20Top%20ECU%20Pinout.htm

[carotman]

I'll add that to the FAQ!!

[thegreatdane]

Maybe add the diagram picture as well, it might be of use if anyone wants to convert their euro B20A1/2/8.

Great you got it running. So which ecu do you like best, the PK2, goldtop PH3 or blacktop PH3?

[Nafs Asdf]

Bump so I don't forget about this thread. Got all the pieces for my JDM ECU/ignition swap now.

[b20a86lude]

wow this was very helpful

[Ichiban]

Did this get stickied? I can never find it when I need it.:flash:

[Cowkidz]

Hello guys,

Now my B20A1 pinout error. Need your advise or diagram to troubleshooting.


Would really appreciate much.