Oxygen (02) Simulator Installation
by Mcthings » Fri Dec 22, 2006 5:59 pm
First off, I would like to give a HUGE thanks to CASTRO for telling me how to do this. I had no idea how to do this until he showed me, so I take zero credit for this. I'm just doing a write up of the information that he gave me.
This DIY is for Camrys and Solaras, 1997 and non-california spec. 1998.
I did mine on my 1997 Toyota Camry, v6 (1mz-fe) XLE.
Let's get started.
Unplug your battery. (don't skip this)
The ECU is located behind the glove box. Open the glove box, and unscrew the 5 screws. The first 3 are easy -- the are on the top middle, top right, and top left. The other 2 are a little bit more hidden. One is on the bottom left side of the whole glove box unit (you can get to it with the glove box closed, I belive.) and the other is just opposite of that. Bottom right, near the door sill (if I remember correctly, this one is hidden a little bit).
The glove box, after the screws are taken out, is connected to the dash by simple snap clips. Give it a good tug (make sure there are no more screws still on!!) and it should come out.
There will be a wire hookup thingy on the top left of the glove box as you pull it out. Instead of unclipping it, i just removed the whole clip unit from the glove box, that way I made sure I wouldn't have a loose connection.
This is what you should see:
Now, you'll need the TRD ECU Diagram:
The wire we will be tapping into is on clip E7 and is Pin 18. Is the the pin that I highlighted RED in the diagram.
Please also note that the diagram has an arrow showing you where the top of the clips are. They are in verticle formation, so really that diagram should be rotated 90 degrees counter-clockwise.
Your ECU clips should look like this:
I have greyed out everything BUT the ECU clips, and the red shaded clip is the E7 clip. Once you have located this E7 clip (the very top one), just count <-- 1 pin, and up 4 pins. There should be a wire there. I think mine was black (or a really dark color). THIS IS THE WIRE YOU WILL BE CUTTING IN TO!
Now, grab your 02 Sim. Take a look at it. It has 3 wires. BLACK is the ground. GREEN connects to the half of the wire (after you cut) that runs all the way back to the actual 02 sensor. PURPLE connects to the half of the cut wire that goes directly into the ECU, through the plug.
Go ahead and cut the black tape that should be wrapped around that clips wires so you can better get at this pin18 wire. Once you can see the pin18 wire enough to cut it and work with it, do so. Just grab some wire cutters and snip it, making sure that you have enough room on both sides of the wire to connect GREEN and PURPLE.
Then, do just that. Remember:
BLACK- Ground (we'll deal with that one later)
GREEN- half that runs allthrough the car to the 02 sensor
PURPLE- half that goes directly into the ECU through the wire clip.
The easiest way I have found to connect small wires like this is simple -- twisting them, and then wrapping them in electritions tape. I'm sure there are better ways: heatshink, soldering, etc. If you can/know how to do that, do it. It's probably better than my basic twist and tape method.
So connect the 2 green and purple wires by the method of your choice, and we'll move on the the last wire: the black ground wire.
Go ahead and stick your head down under the dash, and look to your right. You should see a fairly thick wire running along the wall to the right, and then it goes to a single bolt connected to the body frame of the car with a ring type terminal. It looks like this:
Just unscrew this bolt enough to wrap the wire around the bolt (come from behind, up, and down, just like if yoyu were screwing the wire onto the bolt). Then tighten the bolt. If you put the wire behind the bolt correctly, it should just keep wrapping itself around the more you tighten the bolt. Make sure it's snug, but I don't see any reason to tighten it too much and risk breaking the wire or something. Snug.
Find a place to put the Simulator box, and you're good to go! I put mine between my factory amp and the ECU clips, but if you can find a better, more secure place, then use your best judgement.
Snap on your glove box, screw in the screws, and reconnect your battery.
You're good to go!
Again, I want to thank CASTRO for helping me. He taught me how to do this, and I'm sharing it to you. If you have any questions, you can ask me, but CASTRO is really the guy that knows what he is doing!
This DIY is for Camrys and Solaras, 1997 and non-california spec. 1998.
I did mine on my 1997 Toyota Camry, v6 (1mz-fe) XLE.
Let's get started.
Unplug your battery. (don't skip this)
The ECU is located behind the glove box. Open the glove box, and unscrew the 5 screws. The first 3 are easy -- the are on the top middle, top right, and top left. The other 2 are a little bit more hidden. One is on the bottom left side of the whole glove box unit (you can get to it with the glove box closed, I belive.) and the other is just opposite of that. Bottom right, near the door sill (if I remember correctly, this one is hidden a little bit).
The glove box, after the screws are taken out, is connected to the dash by simple snap clips. Give it a good tug (make sure there are no more screws still on!!) and it should come out.
There will be a wire hookup thingy on the top left of the glove box as you pull it out. Instead of unclipping it, i just removed the whole clip unit from the glove box, that way I made sure I wouldn't have a loose connection.
This is what you should see:
Now, you'll need the TRD ECU Diagram:
The wire we will be tapping into is on clip E7 and is Pin 18. Is the the pin that I highlighted RED in the diagram.
Please also note that the diagram has an arrow showing you where the top of the clips are. They are in verticle formation, so really that diagram should be rotated 90 degrees counter-clockwise.
Your ECU clips should look like this:
I have greyed out everything BUT the ECU clips, and the red shaded clip is the E7 clip. Once you have located this E7 clip (the very top one), just count <-- 1 pin, and up 4 pins. There should be a wire there. I think mine was black (or a really dark color). THIS IS THE WIRE YOU WILL BE CUTTING IN TO!
Now, grab your 02 Sim. Take a look at it. It has 3 wires. BLACK is the ground. GREEN connects to the half of the wire (after you cut) that runs all the way back to the actual 02 sensor. PURPLE connects to the half of the cut wire that goes directly into the ECU, through the plug.
Go ahead and cut the black tape that should be wrapped around that clips wires so you can better get at this pin18 wire. Once you can see the pin18 wire enough to cut it and work with it, do so. Just grab some wire cutters and snip it, making sure that you have enough room on both sides of the wire to connect GREEN and PURPLE.
Then, do just that. Remember:
BLACK- Ground (we'll deal with that one later)
GREEN- half that runs allthrough the car to the 02 sensor
PURPLE- half that goes directly into the ECU through the wire clip.
The easiest way I have found to connect small wires like this is simple -- twisting them, and then wrapping them in electritions tape. I'm sure there are better ways: heatshink, soldering, etc. If you can/know how to do that, do it. It's probably better than my basic twist and tape method.
So connect the 2 green and purple wires by the method of your choice, and we'll move on the the last wire: the black ground wire.
Go ahead and stick your head down under the dash, and look to your right. You should see a fairly thick wire running along the wall to the right, and then it goes to a single bolt connected to the body frame of the car with a ring type terminal. It looks like this:
Just unscrew this bolt enough to wrap the wire around the bolt (come from behind, up, and down, just like if yoyu were screwing the wire onto the bolt). Then tighten the bolt. If you put the wire behind the bolt correctly, it should just keep wrapping itself around the more you tighten the bolt. Make sure it's snug, but I don't see any reason to tighten it too much and risk breaking the wire or something. Snug.
Find a place to put the Simulator box, and you're good to go! I put mine between my factory amp and the ECU clips, but if you can find a better, more secure place, then use your best judgement.
Snap on your glove box, screw in the screws, and reconnect your battery.
You're good to go!
Again, I want to thank CASTRO for helping me. He taught me how to do this, and I'm sharing it to you. If you have any questions, you can ask me, but CASTRO is really the guy that knows what he is doing!
- Mcthings
- Regular SolaraGuy Member
- Posts: 77
- Joined: Thu Oct 05, 2006 9:49 pm
