P11ORG63001 - F20A - BB3 ECU Pinout - Honda Prelude Forum

ds2000 · 05-09-2003, 02:34 PM

Hi all,

Can anyone point me in the direction of the pinouts for the above?

The H22 is coming soon and I could do with it asap.

Thanks

Dave

red92s · 05-09-2003, 06:19 PM

Dave,

All OBDI Hondas use the same pinout diagram for the ECU (all Preludes, civics, integras, accords. . .ALL OBDI hondas!). This only means the connectors going into the ECU are shapped the same, and that the wire locations are the same.

This does NOT, however, imply that all OBDI hondas actually HAVE all these wires .Example: the ECU plug on my F22 harness did NOT have WIRING for the knock sensor, but the empty hole on the plug is there (in location D3, in this case). Here is the pinout schematic for OBDI cars, I dunno which wires in particular you have questions about, but let me know and I can get you the color/location of them:

Satan_SRV · 05-09-2003, 06:33 PM

Hmm you have an F20A......what year is the car/motor?

And what exactly are you wiring with the ecu? You should buy the ecu that plugs directlyinto your ecu plugs that already exist...

prelude styl · 05-09-2003, 10:17 PM

actually, the f series (I only specifically know of the F22A1) isn't the same as the H series ECU clips.

jsmooney · 05-10-2003, 12:06 AM

f22b.....?

red92s · 05-10-2003, 01:24 AM

Quote:

Originally posted by prelude styl
actually, the f series (I only specifically know of the F22A1) isn't the same as the H series ECU clips.

Yes, they are. The wiring harness from my F22a1 engine pluged directly into my H22 ECU. My friends GSR ECU also plugs directly into my wiring harness.

Ds2000 is in the early stages of an H22 swap. He is from the UK (look at his avatar), where they apparently offered a 2.0L SOHC motor in the 4th gen (confirmed by UK VTEC):
H22 Engine Swapout with a small difference

ds2000 · 05-10-2003, 02:00 AM

Thanks guys, yes the engine is an F20A SOHC 135BHP Model.

Thanks Red92S that is an invaluable bit of info on the wiring harness. Much appreciated!!

Thanks again!

Dave

prelude styl · 05-10-2003, 09:59 AM

Well, my previous Prelude, a 92 S, didn't have the same ECU clips as an P13 ECU. Maybe mine was different, I dunno. I'm not arguing, I'm just saying, that's how mine was.

red92s · 05-10-2003, 10:30 AM

Quote:

Originally posted by prelude styl
Well, my previous Prelude, a 92 S, didn't have the same ECU clips as an P13 ECU. Maybe mine was different, I dunno. I'm not arguing, I'm just saying, that's how mine was.

The plugs sgould be the same size and shape, even if all the wires were not in place on your S harness. Maybe your car is just a freak of nature?

prelude styl · 05-10-2003, 07:05 PM

maybe so, cause the plugs were different sizes.

ds2000 · 05-13-2003, 02:33 AM

Hmmmm mines P11 not P13, I've got the engine now so I'll have to whip the old ECU out and make sure the connectors are ok, I imagine that they will be identical as red92s says

red92s · 05-13-2003, 11:00 AM

The ECU you got with your H22 says P11?

ds2000 · 05-13-2003, 02:32 PM

No sorry, the F20A ECU is P11 the H22 is P13

red92s · 05-13-2003, 08:20 PM

Quote:

Originally posted by ds2000
No sorry, the F20A ECU is P11 the H22 is P13

Everything should be gravy then!

ds2000 · 05-14-2003, 02:27 AM

Yep, sat is the big day. Do you know where I can find a Haynes guide, I've looked everywhere and can't see one

If I can't find it then I'm going to be put back a bit

red92s · 05-14-2003, 08:46 AM

Over here in the states, pretty much every auto parts store sells the entire line of Haynes manuals for $15 each. The dealer service manual (Helm's manual) can be purchused from www.helminc.com for about $60. There is a less-comprehensive online version available at:
http://icelord.net/honda/repair/

If you need any SPECIFIC parts of the service manual, let me know and I can scan them (the entire thing is 1000+ pages, but engine removal is only 11 or so).