put on an after market header and down pipe
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Joined: Jan 2010
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Cycle the key there times (to the on position) and it will give you the codes.
All Star
Joined: Jan 2008
Posts: 815
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From: Lima, OH
Your problem is the downpipe put the catalytic converter back on so that your downstream o2 sensor is reading right otherwise you'll keep getting the engine code.
Rookie
Joined: Jan 2010
Posts: 85
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Or if you want to keep the downpipe you could do the following in a hypothetical situation.(Please note I have never done nor wrote this hypothetical situation)
You can use a resistor to cancel ya CEL, this is what im performing manana!!! GL bro lemme how it goes!! Materials:
1) wire cutters
2) wire strippers
3) 1 10 Mega Ohm resistor rated at 1/4 watt or more. - Radioshack P/N 271-1365
4) 2 Butt Connectors - Radioshack P/N 64-3108
5) Clear or Gray Heatshrink that is 1/4x6" or larger, but I found this to be the best size. - Radioshack P/N 278-1610
6) A heatgun or lighter or anything that will make the heatshrink actually shrink.
7) electrical or duct tape/zip ties.
Procedure:
1) get under the car and disconnect the REAR O2 sensor from the socket and from the cat. To disconnect it from the cat is a bit tricky and a special tool is needed. You can get it done at a muffler shop for little to nothing. Instead of trying to think up a good excuse simply tell them that your getting a new cat and that you need to take the O2 sensor out to put it in the new one or you can tell them that the sensor went bad and your replacing it. Anyway, if you don't have the tools to get it off the cat then get some place to do it.
2) assuming that the sensor is off the car and out of the cat your next goal is to expose some of the gray wire, i believe that there are either three or four wiress, a black, 2 whites, and a gray, I THINK. Regardless there is still a gray wire.
3) cut the wire and strip about 1/4-1/2 inch on each side of the gray wire. This gap is where your resistor will go.
4) take out 1 10 MegaOhm resistor and simply insert one end into the butt connector. Then take the gray wire that you just cut (Doesn't matter which side) and insert that into the butt connector and crimp both sides. Now give a light tug to ensure that both the resistor and the wire are both secure.
5) Now slide the heat shrink over that piece and expose the other end of the resistor, the one that hasnt been connected.
6) repeat step 4 except do it with the other side of the resistor and the other side of the wire. Now crimp. There is no wrong way to put in a resister so don't stress out about putting it in in reverse, cause it can be connected both ways.
7) slide the heatshrink so that it covers the whole area that has been worked on and so that it overlaps the factory black wire
hose.
8) Now take your heating device and slowly heat the heatshrink so that it shrinks over the resistor and the two butt connectors. This makes sure that no metal or connection of any kind will losen or make contact with the frame or any other part of the car.
9) Take the electrical tape or duct tape and wrap it around the whole O2 sensor cable, or atleast the part the has the heatshrink on it. I wrapped electrical tape around the whole O2 sensor cable.
You should now be done and ready to role! Don't forget to plug the O2 sensor back in the car and you have to disconnect the battery from the car for a second from the car so that the computer will reset. Then just zip tie or duct tape the sensor and the wires to the frame and should be good to go! *** Got this mod from PO***
You can use a resistor to cancel ya CEL, this is what im performing manana!!! GL bro lemme how it goes!! Materials:
1) wire cutters
2) wire strippers
3) 1 10 Mega Ohm resistor rated at 1/4 watt or more. - Radioshack P/N 271-1365
4) 2 Butt Connectors - Radioshack P/N 64-3108
5) Clear or Gray Heatshrink that is 1/4x6" or larger, but I found this to be the best size. - Radioshack P/N 278-1610
6) A heatgun or lighter or anything that will make the heatshrink actually shrink.
7) electrical or duct tape/zip ties.
Procedure:
1) get under the car and disconnect the REAR O2 sensor from the socket and from the cat. To disconnect it from the cat is a bit tricky and a special tool is needed. You can get it done at a muffler shop for little to nothing. Instead of trying to think up a good excuse simply tell them that your getting a new cat and that you need to take the O2 sensor out to put it in the new one or you can tell them that the sensor went bad and your replacing it. Anyway, if you don't have the tools to get it off the cat then get some place to do it.
2) assuming that the sensor is off the car and out of the cat your next goal is to expose some of the gray wire, i believe that there are either three or four wiress, a black, 2 whites, and a gray, I THINK. Regardless there is still a gray wire.
3) cut the wire and strip about 1/4-1/2 inch on each side of the gray wire. This gap is where your resistor will go.
4) take out 1 10 MegaOhm resistor and simply insert one end into the butt connector. Then take the gray wire that you just cut (Doesn't matter which side) and insert that into the butt connector and crimp both sides. Now give a light tug to ensure that both the resistor and the wire are both secure.
5) Now slide the heat shrink over that piece and expose the other end of the resistor, the one that hasnt been connected.
6) repeat step 4 except do it with the other side of the resistor and the other side of the wire. Now crimp. There is no wrong way to put in a resister so don't stress out about putting it in in reverse, cause it can be connected both ways.
7) slide the heatshrink so that it covers the whole area that has been worked on and so that it overlaps the factory black wire
hose.
8) Now take your heating device and slowly heat the heatshrink so that it shrinks over the resistor and the two butt connectors. This makes sure that no metal or connection of any kind will losen or make contact with the frame or any other part of the car.
9) Take the electrical tape or duct tape and wrap it around the whole O2 sensor cable, or atleast the part the has the heatshrink on it. I wrapped electrical tape around the whole O2 sensor cable.
You should now be done and ready to role! Don't forget to plug the O2 sensor back in the car and you have to disconnect the battery from the car for a second from the car so that the computer will reset. Then just zip tie or duct tape the sensor and the wires to the frame and should be good to go! *** Got this mod from PO***