I have 2002 Lexus RX300 all wheel drive and the engine light went on when I drove over a high snow. I took the car to Lexus service (paid $120 to check it on the computer) and I was told that there was a problem with speed sensor, PO500 code. The engine light went off and I was told that if it goes on again I will have to replace two sensors for $650 and if this doesn’t fix it they will replace transmission. Next day I got the same problem, heavy snow, engine lights on but it fixed itself after a few hours. Is there anything I can check or fix myself before I spend that much money?

SOURCE: Check engine light is on

no such thing as a catalytic computer... there is a catalytic converter ... part of the exhaust system so they may now be "guessing" that it's an O2 sensor. take the car to autozone... they will scan the codes for free.... post the codes here tho the lads and lasses there are pretty clever and will probably tell you what the codes mean.

SOURCE: ? to Replace Timing belt on 2000 Lexus Rx300 with 57,000 miles.

If it is running perfectly I wouldn't think that you would need to replace the timing belt. You shouldn't need to replace that until 100,000-120,000 miles. I would definitely hold off until now unless you have start having some timing problems. Let me know if you have any other questions. Thanks for rating my response and for using FixYa!

SOURCE: High RPMs

yes its related to knock sensor because car is running rich in fuel, and car runs of on safe mode, so overdrive will be off. have you and a friend replace it. remove intake assembly, then intake manifold, but first remove your anifreeze from radiator, trust me you want to remove antifreeze! their are brackets by the fire wall to hold down the manifold, thats the hard part is taking it off and putting that on since not to much space to work on it. on the block you'll see the two knock sensors, has 2 wires each, knock sensors cost between 150- 200 a piece, still cheaper than dealership putting it on. also buy some liquid gasket because you will need that. after putting it all back together reset the ecu and you should be fine,

SOURCE: replace side marker light on lexus rx300

Remove 3 - 4 screws on fender cover close to side marker light. Pull fender cover out a bit for you to use your other hand to reach side marker light. By twisting on one direction and here you go the light out. Replace new bulb and replace everything on reverse order.

SOURCE: Replacing outer tail light on Lexus RX300 ?

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Lift the hatch. The tall center light is located behind the upper hatch inside panel. There are two panels need to remove. One panel is on the right, the other on the left. To remove the panels you have to use flat screw driver to pry out the panel in several locations. (These panels are secured by several small metal clips.) Be careful to collect all these clips and replace them on the back of the panel. You will need these clips to replace the panel later on. After remove the panels, you will be able to locate the screws on the tall center stop light assembly. Remove those screws and cover. After replacing light bulb. Assemble everything in reverse order. Remember, the metal clips have to set on the back of the two panels not the car body.