97 avalon "trac off" is on. car thows p1705

[lv6l]

1997 avalon xls

my car's trac off light is on. it wont go off. also my car is throwing a p1705 code. could this be related to the trac off?

i remember in the pass when the light can be turn off, at times when you would gas the car hard and quickly from a dead stop the car would jerk around, it would not want to go anywhere for a couple seconds and then the light would turn on and the car would move as normal.

[toyomoho]

Direct clutch speed sensor

http://autorepair.about.com/library/faqs/bl248h.htm

The TRAC system will drop out whenever an engine or drive train code is set to conserve engine power.

[lv6l]

ok in another thread i ask you guys how to fix my two codes. o2 sensor code and p1705, which is direct clutch speed sensor. i finally got the right part from toyota and repalce only the o2 sensor. ran a obdII scanner and it throws no codes. my direct cluch speed sensor(p1705) code seem to disappear. everything running normal now.

the problem now is...in the past this would happen on serval occasions. when at a dead stop; i would step on throttle somewhat hard and quick and the car would jerk and struggle and lag, pretty much acts weird. it would jerk and stuff for a about a second or two only. then it would drive like normal afterwards. by then the trac light would come on and stay on permantly and strangly i think it would foul my o2 sensor as well. i dont know forsure if it will foul again if i try it on this new o2 sensor i just replace, but i dont want to risk it. oh yeah, after the trac lights comes on and stays on, you can floor it at a dead stop, no problems. it would launch like any car should. please help. does anyone know any link that can give me more information about this problem or does anyone have experience with this issue before. thanks.

[Hendy]

lv6l, have you had any problems since your post in Dec? I've got a 97 with 150K on it and the check engine is on. When I ran the diagnostics it gives the P1705 code. Is it just the O2 censor you switched out, and if so whitch one? I'm in the process of trying to sell the car but it's hard to sell with a check engine light on.

Thanks

Hendy

[lv6l]

No, My car has been running fine. On the Avalon there is 2 sensor if you are in the state of California. There is an oxygen sensor, and there is an air/fuel ratio sensor. You can go to a Toyota dealership and make sure to ask a manager of which one goes where, I had to go to 2 different dealer and speak to 5 workers until I found my answer from an older wiser manager. Since Toyota made many different kinds of sensor for the two available in the Avalon, workers can commonly mixed them up. So make sure you tell the manager at the dealership which sensor you need for what reason, he hopefully can show you the correct one. I change the one that is located on the exhaust manifold real close to the steering rack and firewall.

Along with that I also replace the VSS. Again, for Avalon models there are a few VSS. (Vehicle Speed Sensor) Again, at the dealership the man can tell you which one to change, I was told by many people that there is 2 on the tranny, some told me there is one in the dash, some even told me there is one in the brakes. But The one I change is on top of the tranny, it sits right in the middle of the tranny if you are looking from top view down, it is right in the middle from end to end. It's the only sensor I remember that is a bit higher than the rest. If you are unsure and would like me to take a picture of the sensor I change feel free to email me at "mikenguyen85@hotmail.com" and I can take pictures of all the parts I change. I feel you, I know how annoying it can be to get this code. I have had this code for while now and no shop can fix it until I got frustrated and went on a mission myself. Now car runs great, gas millage is back to spec.