Hello,
I am a new lexus owner and new to this forum. I just bought a 95 es300 with 150k on it for 2,300 and the exterior and interior are in great condition for the year and mileage. I'm pretty sure i got a great deal on the car. I am very happy with it so far as it was a major upgrade from my 92 accord sdn with one working power window and not a single body panel that didn't have a dent.
Before i bought the car, the owner stated in the listing that it will need work for the next inspection. When we met, he said that a toyota dealer said that it will need a new cat for next inspection. I expected the check engine light to be on and my expectations were met when i drove the car. I used to work in a shop (gas pumper, not quite a tech, but somewhat knowledgable)and I stopped down yesterday to check what codes would come up with the "07 snap-on scan tool.
Unexpectedly but related, there was no code for the cat, but rather the O2 sensor (Sensor 1, Bank 1) and I have some questions regarding this code. I've done some research on previous threads as well as other sites regarding sensor locations and part numbers so that I can do it myself, but I'm still unsure of everything I want to know.
-I believe that S1 B1 is between the engine and firewall on the exhaust manifold. Is this correct?
-I looked on ebay, nkg, lexus-parts, and other parts sites for the sensor but im not sure if S1 B1 is Upstream left, Upstream right, or Downstream? Are the O2 sensors universal, or is there a specific sensor for S1 B1? Does anyone have the O2 S1 B1 OEM part number?
-The cat itself looks ok and the flexpipe is intact, but the wire mesh on the outside of the flex pipe is for the most part gone which is probably why the dealer said it would need one. Is it suggested that I change the cat and all O2 sensors to increase my chances of the check engine light staying off, or just s1 b1?
-How difficult or easy is it to clean the MAF sensor and does this improve acceleration and/or fuel mileage?
-Any easy performance mods that can be done without major investments in money and time?
Any other tips or suggestions related to this will be helpful. Also thanks to everyone who posts knowledgable, accurate tips and fixes on this site (im going to use the headlight haze tutorial i found). I look forward to being a contributing member.