Hi everybody,

I want to fit my H22a motor (OBD1) in my OBD2 5th gen non-Vtec...
I have the harness of the H22A and I want use harness converter with P13 Obd2 Ecu.

What parts of Harness I need In Obd1 or Obd2 ?
I don't know how I can do ?

 

Up plz

 

Anyone for Help Me ?

 

Generally people swapping OBD1 H22s into their H22 5th gens will use the OEM OBD2 wire harness and convert the new engine to OBD2 by borrowing parts off their old engine.

Then if they want to use an OBD1 ECU they just run a conversion harness at the end.


That said if you have an uncut OBD1 harness with the H22 and some patience you could make the whole car OBD1. You might have to if the OBD2 F20 bits wouldn't swap over to the H22 right (I have no idea if they would).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by A Blue Lude &raquo;</TD></TR><TR><TD CLASS="quote">Generally people swapping OBD1 H22s into their H22 5th gens will use the OEM OBD2 wire harness and convert the new engine to OBD2 by borrowing parts off their old engine.

Then if they want to use an OBD1 ECU they just run a conversion harness at the end.


That said if you have an uncut OBD1 harness with the H22 and some patience you could make the whole car OBD1. You might have to if the OBD2 F20 bits wouldn't swap over to the H22 right (I have no idea if they would).</TD></TR></TABLE>

some patience? more like a lot and a lot of confidence in wiring skills, lol.

been down that road before and it put me in my place.

 

Thanks for your answers !

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by A Blue Lude &raquo;</TD></TR><TR><TD CLASS="quote">Generally people swapping OBD1 H22s into their H22 5th gens will use the OEM OBD2 wire harness and convert the new engine to OBD2 by borrowing parts off their old engine.

</TD></TR></TABLE>

Ok, If I convert all motors parts in Obd2, I want know what element is required...Distributor, knock sensor...and ? (sorry but This part is unclear to me.. )

The Obd1 element should be replace by Obd2 or I can just "re-pins" the plug ?
Can you explain me what element need a Obd convesion please

I think Use P13 Obd1 ecu with conversion harness with my stock Obd2 main and motor harness.

 

https://honda-tech.com/zerothread/2084037

 

Thank, good thread !

But I Can't swap my Obd2 f20 parts because they don't fit on the H22A.
It's my problem.

Sorry but I'm french and sometimes I have difficulty translating or a make myself understood, I hope that you will understand.

 

your english is fine, i can understand you perfectly. You type better than half the "americans" here.

if you want to convert it over to OBDII, you will need to obtain the OBDII h22 parts in that list.

 

Thank you very much

I think than the motor will remain OBD1, if I succed with the harness, because is the cheaper way ( I think) but not the easier unfortunatly...

Do the connectors on the harness in the engine bay can be "re-pined" ?
Does there a special tool to extract connector's wires ? How to ?

 

good luck getting all the OBDI components to work with your OBDII engine harness. Thats a shitload of work.

 

Really ?
The principle to convert isn't the same as for the distributor obd swap ?
I don't really see the work to do for This Obd swap, Concretely...

 

you are referring to using the OBDI engine harness correct?

 

no, I talk about the stock obd2 harness...

but I had the Obd1 h22A harness too, if I need...

 

I have find this :

OBD2a OBD2b Function OBD1 Color Notes
A01 B05 Injector 4 A02 Yellow
A02 B04 Injector 3 A05 Light Blue
A03 B03 Injector 2 A03 Red
A04 B11 Injector 1 A01 Brown
A05 A08 SO2H No connection on OBD1
A06 C01 PO2H A06 Orange/black
A08 B12 VTS A04 Orange/White
A09 B20 LG1 A26 Black/Red
A10 B02 PG1 A23 Black
A11 B01 IGP1 A25 Yellow/Black
A12 B23 IACV A09 Green/White
A15 A06 PCS A20 Red
A16 A16 FLR A07 Green/Yellow
A17 A17 ACC A15 Black/Red
A18 A18 MIL A13 Green/Orange
A19 A02 ALTC A16 White/Yellow No connection on D16Y8 P2Nb
A20 B13 ICM A21 Red/Green
A22 B22 LG2 B02 Brown
A23 B10 PG2 A24 Black
A24 B09 ICP2 B01 Yellow Black
A27 A20 FANC A12 Yellow/Green
C01 C31 CKFP No connection on OBD1
C02 C08 CKPP B15 Blue/Green
C03 C20 TDCP B13 Orange/Blue
C04 C29 CYPP B11 Orange
C05 A27 ACS B05 Blue/Red
C06 A24 STS B09 Blue/White
C07 A10 SCS D04 Brown
C10 B21 VBU D01 White/Blue
C11 C22 CKFM No connection on OBD1
C12 C09 CKPM B16 Blue/Yellow
C13 C21 TDCM B14 White/Blue
C14 C30 CYPM B12 White
C15 C10 VTM D06 Orange/Green Connected to VTS on OBD2a
C16 A26 PSW B08 Brown/Red
C17 C05 ALTF D09 Pink No connection on D16Y8 P2Nb
C18 C23 VSS B10 Yellow/Blue
D01 C27 TPS D11 Pink/Black
D02 C26 ECT D13 Red/White
D03 C17 MAP D17 Pink/White
D04 C19 VCC1 D19 Yellow/Green
D05 A32 BKSM D02 Greem/White
D06 C03 KS D03 Red/Green No connection on P08, P28
D07 C16 PO2S D14 White
D08 C25 IAT D15
D10 C28 VCC2 D20 Yellow/White
D11 C18 SG2 D22 Green/White
D12 C07 SG1 D21 Green/Blue
D14 A23 SO2S No connection on OBD1
D16 A30 EL D10 Green/Red No connection on D16Y8 P2Nb


My question: Just happens to match the wire to make it work ???
Exemple, If I take the motor harness and the IACV B23 wire (obd2b), It should be match with the A09 IACV wire of the obd1 harness ?

Is that the method ?


Modified by H22@ at 1:38 PM 3/20/2008

 

up

 

you have the schematic for OBDIIB and you have the schematic for OBDI.

All this takes is matching up each wire so that each one corresponds to each other on both sides.

take out a piece of paper and literally write down each pin for OBDIIb and each pin for OBDI. Then draw arrows to each respective pin.

You are going to have to repin everything at the subharness to engine harness connectors as well and you will need to rewire one of the connectors because they will not connect to each other. You may be able to fit everything through the 4 big connectors tho.

double, triple check your wiring using a multimeter to make sure that each one has continuity going to each respective sensor.

Use the OBDI connectors and solder them to the OBDII subharness wires. There will be a few wires from the OBDII subharness that wont have any place on the OBDI connectors for obvious reasons. I cant stress enough how much work this is to complete.

 

Great, thank you very much for all.

I see more clearly...

 

Hi, I give some news

The swap is made...



I keep my obd2 harness, using a jumper obda2-obd1. I want to run my motor obd1
But the H22A does not work correctly when I plug the ECU obd1, it is soft, the RPM evolution is slow and failure.
with the obd2a ecu the h22a run better but with obd1 injector with resistor box and no vtec. it's strange.

here's what I change for now :

I have made an adapter for the distributor obd1



I have ad the resistor box for run the obd1 injector



I have instal the 4th gen MAP sensor



And I have ad temporary wires for ad vtec, I have wire the Vtec solenoid (A4), the knock sensor (D3), the Vtec pressure switch (D6 and D22)



But Vtec don't run.

My rev limit is 6500 !!

Help me please, I have no idea

there happens the other change has to do?

I have a CEL code 6, 20 and 22. water temp is connected (on the head under the distributor), vtec pressure switch is connected...

It's only with p13 obd1 than the motor run bad, with obd2 run fine

What is the black box near my ecu on the last pic ??

 

I read in many thread that many guy who swap H22 have the problem with the ECT (code6) but i don't find the solution

Help, i'm in limp mode

 

Ok, ECT is good, no code 6 yet.

Where is the swapping profesionals ? please help me.

I'm still in limp mode, without Vtec...