The 1999 Lexus GS 300 is equipped with a total of four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. These sensors monitor the exhaust gases to ensure optimal engine performance and emissions control.
R134a
How do you replace evpansion valve on 99 gs 300
How do you remove cap on armrest
Yes, just pull up the seat cushion on both sides and pull out .
There are two oxegen sensors on the 99 V70 GLT.
only one
Your engine block is the main part of your engine that holds the crankshaft and pistons internally. Your knock sensors, there are two, are screwed into the top of the engine block in the valley between the cylinder heads. You don't have to remove the engine block, you do have to remove the upper and lower intake manifolds to get to them. I changed the sensors in my 99 rx300, long day!
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if the code is not located with your owners manual, go to a Lexus dealership to get a code. they may charge you for it.
Trouble code P0125 means: Insufficient coolant temperature for closed loop fuel control
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Check