Hi Sean,this forum will show you your oil pressure switch locati0n,Autozone has them for 12.99. Oil pressure switch sensor location ClubLexus Lexus Forum Discussion Here's the new part.Just take off connector,get wrench and remove. Duralast Oil Pressure Switch
SOURCE: code p1130. where is the sensor located
P1130 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)
This sensor is the hardest to get at. It is between the cat and the cylinder block on the bank of cylinders closest to the firewall. Not much wiggle room back there.
Sensor will run you about $225 from Toyota, $275 from Lexus, but you may be able to get a Denso sensor on line.
Good luck and hope this helps. keep me posted.
SOURCE: HOW MANY LITERS OIL NEEDS LEXUS RX300 2001?
You need 5 quarts in the Lexus RX300. Beware, the RX300 has a history of engine sludge problems (just search the internet for Toyota engine sludge). I would recommend Mobil 1 (this is FULL synthetic) and for viscosity I would recommend 5w-30 in the winter and 10w-30 in the summer. Your manual will verify the viscosity that I have mentioned. You must use good engine oil with this vehicle or else you will have an engine sludge problem and this could cost you a new engine. The RX300 is a wonderful vehicle and very reliable, but it requires some care that you must give it or else it will cost you a lot of money and maybe leave you stranded. For instance, change the oil regularly (no more than 4000 mile intervals) and also change the transmission fluid (no more than 60000 mile intervals). Search online for transmission failures in the RX300 - you'll find that the people who did not get a transmission flush were very sorry!!
SOURCE: Transfer and Differential oil change for RX300
your front wheel drive rx300 doesnt use gear oil, the differential is lubricated internally by transmission fluid. the trans fluid is only reccomended if its dirty. if its a dark brownish red thats normal. or if its pinkish red then its new. if its black or yellow then time to flush it out. if you decide to change the trans fluid I believe the spec is 3qts. check it with the engine running and cold. thats the most accurate way to check it.
Testimonial: "Your clarification is very helpful. Thanks a lot. I did not find the answer clearly anywhere. Does this transaxle unit has only one outlet?"
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