I have searched on this topic extensively but all I can find about OBD1-->OBD2 is 17 pages full of classifieds and people asking how to put an ITR motor into an EG. I have the exact opposite problem...I want to convert to OBD2 so I can pass emissions testing.

Currently I have a 1995 JDM H22A in my 4th gen Accord. I bought an EK a few months ago and I want to move the motor over...however my only options are to find someplace outside of the 'emissions testing region' to register my car or actually make it legal.

I am somewhat confused though. I plan on going further than just putting the motor in the car (read that as turbo) so I eventually will be running the AEM EMS. I know that wont pass emissions but as long as I had the car correctly wired I could always plop in an OBD2 ecu when testing came up right? As long as I have the OBD2 version of the EMS everything seems as if it would be ok.

Basically I just need to know which sensors need added/changed to be able to use the ODB2 ECU and not fail. I am aware of the sensor in the gas tank, the secondary 02, the distributor...but past that I am stuck.

Also, would an OBD2 GSR ECU be able to pass the emissions testing with the H22A? I know it would not be an optimal choice, but again I am planning on running the AEM EMS so I don't really want to buy the very expensive OBD2 H22A4 ecu (w/o immobilzer) if I don't have to (but I will if it comes down to it).

Is this even possible? Should I just sell my H22A and get an OBD2 motor to begin with?

Thanks in advance.

 

ok
this is what i can do to try and help you
I am working on a ek ( obd two b) that got stolen and they stole his obd one and jumper
The car does run the obd two ecu (even with the harness converted to obd one)
The car does have CEL(s) that i do not know what they are yet but i will find out tommorrow

it is a ek with obd one h series swap

 

So I assume the CEL's are going to be for the various sensors that the OBD1 motor does not have?

Thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bomber &raquo;</TD></TR><TR><TD CLASS="quote">So I assume the CEL's are going to be for the various sensors that the OBD1 motor does not have?

Thanks.</TD></TR></TABLE>

you would be correct

the codes are:
54 CKF - crank fluctuation sensor
65 Secondary oxygen sensor heater

 

OK

CKF = sensor in the obd2 oil pump right?

Do you have the secondary o2 sensor hooked up?

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bomber &raquo;</TD></TR><TR><TD CLASS="quote">OK

CKF = sensor in the obd2 oil pump right?</TD></TR></TABLE>

OBD one has it but just in a different spot

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bomber &raquo;</TD></TR><TR><TD CLASS="quote">
Do you have the secondary o2 sensor hooked up?

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

No it is wired for OBD one

you have the plug still there
just weld the second oxygen sensor in

 

Ok thanks.

Are you using obd1 or obd2 injectors? (or does it really even matter)?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bomber &raquo;</TD></TR><TR><TD CLASS="quote">Ok thanks.

Are you using obd1 or obd2 injectors? (or does it really even matter)?</TD></TR></TABLE>

i ran peak and hold injectors (obd one) on the obd two ecu with no problems

 

I apologize if I'm missing something or reading it wrong. I'm assuming that it will fail since the CEL is on, correct? Unless you've figured a way to get it off. I too have an ek with a similar problem. I have a H22 OBD2A with P72 OBD2A. Haven't done the swap yet but would like to know if I can pass smog with this setup?


EDIT: You can't pass smog because of the CEL.

Anyone try using a 96 ex accord ecu OBD2 with a OBD2 H22 with success??


Modified by duofilm at 12:40 PM 12/21/2004