OBD2 gsr in ej1
#1
OBD2 gsr in ej1
Ok so here is the hole story,
I had a 98 four door gsr, and i had a little accident
but now i have a clean ej shell, and i have swapped the OBD2 gsr in the car already, i used the OBD2 gsr engine wire harness and everything plugged in fine except one plug on the passenger side, it is a three wire plug. what do i need to wire this to? and what should i do about the ecu? i can get my hands on a OBD1 chipped P28 or should i get a jumper harness and use my old OBD2 gsr ecu?
I have tried to start the car with the p28 and it starts up just fine but it idles around 2000rmp and sometime pulses, i dont have the o2 sensor in yet and the knock sensor is unplugged. So im guessing it is the ecu?
Please help!
I had a 98 four door gsr, and i had a little accident
but now i have a clean ej shell, and i have swapped the OBD2 gsr in the car already, i used the OBD2 gsr engine wire harness and everything plugged in fine except one plug on the passenger side, it is a three wire plug. what do i need to wire this to? and what should i do about the ecu? i can get my hands on a OBD1 chipped P28 or should i get a jumper harness and use my old OBD2 gsr ecu?
I have tried to start the car with the p28 and it starts up just fine but it idles around 2000rmp and sometime pulses, i dont have the o2 sensor in yet and the knock sensor is unplugged. So im guessing it is the ecu?
Please help!
#2
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Re: OBD2 gsr in ej1
Ok so here is the hole story,
I had a 98 four door gsr, and i had a little accident
but now i have a clean ej shell, and i have swapped the OBD2 gsr in the car already, i used the OBD2 gsr engine wire harness and everything plugged in fine except one plug on the passenger side, it is a three wire plug. what do i need to wire this to? and what should i do about the ecu? i can get my hands on a OBD1 chipped P28 or should i get a jumper harness and use my old OBD2 gsr ecu?
I had a 98 four door gsr, and i had a little accident
but now i have a clean ej shell, and i have swapped the OBD2 gsr in the car already, i used the OBD2 gsr engine wire harness and everything plugged in fine except one plug on the passenger side, it is a three wire plug. what do i need to wire this to? and what should i do about the ecu? i can get my hands on a OBD1 chipped P28 or should i get a jumper harness and use my old OBD2 gsr ecu?
Did you bleed the coolant yet? P28 wont look for a knock sensor btw. If you still have the OEM GS-R manifold i'd try to get an OBD1 P72 so you can have functioning secondary butterflies, but a chipped P28 will work fine.
#3
Re: OBD2 gsr in ej1
The remaining 3 pin plug houses the positive wire for evap plurge valve and both wires of the ckf sensor. You can omit the ckf wires but the evap wire needs to be reconnected. You need the correct map to run your engine with a p28 chipped or you can use a obd1 p72.
#4
Honda-Tech Member
Re: OBD2 gsr in ej1
do not drive the car without the o2 sensor or the knock sensor. use the correct ecu for the engine. you have to use what ever ecu that best matches your engine. if your ecu calls for a knock sensor then make sure its wired up. the easiest thing to do at this point is to use the obd2 GSR ecu. i am not familiar with the schematics of the gsr harness. if you do not have a helms,chilton or haynes manual you can use the search tool on here and if that does not work google will do just as well. it shouldnt take you no longer than 20 minutes to find a wiring diagram for a obd2 gsr engine harness. does the three wire plug have large gauge wires going to it or are they sensor wires (roughly 18-20 gauge)?
Last edited by BigBlock22; 11-17-2010 at 03:07 PM. Reason: made a mistake on post
#5
Honda-Tech Member
Re: OBD2 gsr in ej1
ok... sounds like these guys are already on to it. my best advice to you is to label your sensors next time before you swap the engine that way you know where everything goes. also, buy a manual if you dont already have one. it will save you from headaches down the road
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Re: OBD2 gsr in ej1
just wire up your knock sensor and be sure to connect your o2 sensor. also make sure that your tps and map sensor plugs are not switched.
i also have this exact same set up in my hatch and had no problems with the harness at start up
i also have this exact same set up in my hatch and had no problems with the harness at start up
#14
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#15
Re: OBD2 gsr in ej1
I really wanna stick to myd16z6 engine harness will everything be plug and play?just rewire knock sensor and o2 sensor correct? Do I have to rewire anything in the distributor? I'm planning on using a chipped p28 ecu.
#16
Honda-Tech Member
Re: OBD2 gsr in ej1
I'm pretty sure all the OBD distributors are different.
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