Converting GSR OBD1 to OBD2 help
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From: Sunny Southern, CA, USA
i have a 96 civic with GSR obd1 swap... i am in the process of converting it to obd2 to BAR it and smog it.,.. i need knowledge on what parts i need from an obd2 gsr .... so far these are the info i gathered to do the conversion... ECU, INTAKE MANIFOLD, THROTTLE BODY, DISTRIBUTOR, ALTERNATOR, OIL PUMP, CRANK SENSOR.. let me know what i am missing guys... thanks....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -DC4- »</TD></TR><TR><TD CLASS="quote">I was under the impression that, in California, you can't legally swap a motor that is older than the car regardless of how the motor is set up obd wise.</TD></TR></TABLE>
This is technically correct. However, there have been cases of people getting by with older engines that were equipped with the appropriate emissions equipment for the year of the car, and passing it off as a newer engine. If the ref overlooks things like the model year stamp on the front of the head, then it's possible to pass with an older engine, but you'd have to do a pretty thorough job of putting all the appropriate parts on.
This is technically correct. However, there have been cases of people getting by with older engines that were equipped with the appropriate emissions equipment for the year of the car, and passing it off as a newer engine. If the ref overlooks things like the model year stamp on the front of the head, then it's possible to pass with an older engine, but you'd have to do a pretty thorough job of putting all the appropriate parts on.
Some things to add to your list if you didn't know already...
And yes, usually the engine being swapped in needs to be of the same year or newer than the vehicle.
Reuse your existing civic engine wire harness and modify it accordingly -
add vtec wiring / knock sensor / IAB / extend 2nd 02 sensor if you have a non-vtec civic
- 96-99 integra GSR ecu
- OBD2 injectors
(any 96-00 integra / 96-00 EX civic / 99-00 Si coupe injectors will suffice)
As far as the oil pump & crank sensor (CKF) goes, you MIGHT be able to get away with doing the CKF wiring trick if the BAR inspection doesn't do a visual inspection on the oil pump's crank sensor. You can read about this wiring trick here:
http://www.ff-squad.com/technet/ckftrick.htm
This will save you some $$ from having to swap over to an OBD2 B-series oil pump w/integrated CKF sensor.
I'm pretty sure you'll need to run smog equipment from a 96+ GSR engine in order to pass visual inspection as well as a tailpipe test the REF will run.
The one problem you MIGHT run into is the whole FTP sensor (fuel tank pressure sensor). This is the sensor that trips the low fuel light on your dash when you run low on fuel....hence low fuel light.(lolz). I'm not sure if your civic has this sensor or not (does it?), but the OBD2 integra ECU may look for it and if your civic doesn't have it, problem city. In order to clear this code (and pass BAR) you need to basically swap over to a civic fuel tank that runs this sensor. So I would check and see if you have this sensor BEFORE DOING ANYTHING! If you're gauge cluster has the little icon for low fuel light AND IT WORKS....yer good to go.
Modified by Katman at 11:31 AM 3/25/2008
And yes, usually the engine being swapped in needs to be of the same year or newer than the vehicle.
Reuse your existing civic engine wire harness and modify it accordingly -
add vtec wiring / knock sensor / IAB / extend 2nd 02 sensor if you have a non-vtec civic
- 96-99 integra GSR ecu
- OBD2 injectors
(any 96-00 integra / 96-00 EX civic / 99-00 Si coupe injectors will suffice)
As far as the oil pump & crank sensor (CKF) goes, you MIGHT be able to get away with doing the CKF wiring trick if the BAR inspection doesn't do a visual inspection on the oil pump's crank sensor. You can read about this wiring trick here:
http://www.ff-squad.com/technet/ckftrick.htm
This will save you some $$ from having to swap over to an OBD2 B-series oil pump w/integrated CKF sensor.
I'm pretty sure you'll need to run smog equipment from a 96+ GSR engine in order to pass visual inspection as well as a tailpipe test the REF will run.
The one problem you MIGHT run into is the whole FTP sensor (fuel tank pressure sensor). This is the sensor that trips the low fuel light on your dash when you run low on fuel....hence low fuel light.(lolz). I'm not sure if your civic has this sensor or not (does it?), but the OBD2 integra ECU may look for it and if your civic doesn't have it, problem city. In order to clear this code (and pass BAR) you need to basically swap over to a civic fuel tank that runs this sensor. So I would check and see if you have this sensor BEFORE DOING ANYTHING! If you're gauge cluster has the little icon for low fuel light AND IT WORKS....yer good to go.
Modified by Katman at 11:31 AM 3/25/2008
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