A couple of issues

[Saranael]

Hey solaraguys,

I bought a 2000 V6 Solara SLE (Cali Spec) in February and it drives good since then.

About a month ago I got a check engine light again (P1130 + P0171) which tell me the Air Fuel Sensor Bank 1 Sensor 1 needs to be replaced and this probably caused the system to be lean (P0171).

My question is, which sensor is best to get and would this deal be ok: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=120541054263&crlp=1_263602_263622&ff4=263602_263622&viewitem=&guid=33e6e3e11290a0aad3e5baa5ff0317b3&rvr_id=&ua=%3F*S%3F&itemid=120541054263

Furthermore, the car is at 103k now and my transmission fluid looks burnt like chocolate sauce. I really want to do something about it. But what would be the best to do?
I dont want to ruin my transmission by flushing and then setting free dirt parts which get stuck somewhere in the transmission and cause future problems.

Since Im just a College Student, I did only one DIY so far: Changing Spark Plugs and Wires. Was fun and easy, especially because Autozone borrowed me this super flexible ratchet.

Is changing the transmission fluid difficult?

Thanks a lot!

[Saranael]

So ok now one replied but Im updating.

Changed Spark Plugs, Wires and A/F sensor thanks to tutorials I found here. CEL is off, hope it remains so. Now I still have the transmission fluid left.

It looks burnt with ashes in it and Im scared Im gonna screw it up no matter what do. Any advice?

[mig0s]

If your transmission is slipping or not responding as quick as it should be, only in that situation do a transmission flush. If not, just change the transmission fluid, as I'm guessin it has not ever been changed.

[LEE337]

So ok now one replied but Im updating.

Prolly cuz you posted in the Gen 2/2.5 section.

Have you tried a drain and fill?

[Saranael]

No I havent done anything yet. Im scared that the new fluid will wash out old accumulated dirt and get stuck in the transmission fluid pathways. Same with a flush, I dont want any leaks to occur......