What is the proper air pressure? i know 50lbs is the max for the 2002 lexus 430sc

I am 70 in February. I can help and I have a Lexus ES330. I will list the links to the codes. You are going to need a mechanic, but you can give them the list of what is needed.

P1354 LEXUS Code - Variable Valve Timing System ...

https://www.engine-codes.com > p1354_lexus
'What Does the P1354 LEXUS Code Mean? Variable Valve Timing (VVT) system controls the intake valve timing to proper timing in response to driving condition. The ...

P0191 LEXUS Code - Fuel Rail Pressure Sensor Circuit ...

https://www.engine-codes.com > p0191_lexus
'What are the Possible Causes of the P0191 LEXUS Code? · Faulty Fuel Rail Pressure Sensor · Fuel Rail Pressure Sensor harness is open or shorted · Fuel Rail ...

P1135 LEXUS Code - Air/Fuel Ratio Sensor Heater Circuit ...

https://www.engine-codes.com > p1135_lexus
'What are the Possible Causes of the P1135 LEXUS Code? · Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 · Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness ...

P1153 LEXUS Code - Air/Fuel Ratio Sensor Circuit Response ...

https://www.engine-codes.com > p1153_lexus
'What is P1153 LEXUS code meaning? ... The Air-Fuel ratio (A/F) sensor varies its output voltage in proportion to the air-fuel ratio. Based on the output voltage, ...

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Give for your reference: http://www.xcardiag.com/service hope it can help you.

Well if you trust the gauge, the problem could be the pump or several other components. If the crank bearings are worn out, you will loose oil pressure as the engine warms up just as you would with a weak pump.
You won't know until you take the oil pan off and inspect.

I suggest check vacuum leaks, air intake and fuel pressure.

Sounds like the fuel pressure regulator is stuck in the open position.I am trying to remember if this engine(Vortec?)has a return line to the tank.If it does,try disconnecting the return(smaller) line,and use something to plug the fitting on the outlet of the fuel on the intake(Use a piece of fuel hose and a bolt_make sure you use a hose clamp,as there is 50 PSI of pressure)

Sounds like something is drawing the battery down...The best test for this is.... Well before starting this test make sure your doors are closed and everything is off. Then ...Take (disconnect) one end of the battery cable, the Positive or negative it don't mater witch one. Put a 12 volt test light between the two disconnected (cable and battery end)...now if the light is lit, then you have a voltage drain somewhere...to find out were it is you will have too start to remove your fuses one at a time until your test light goes off...for example: if you pulled your cigaret lighter fuse and the light went off then you know there is a problem with that circuit...ect......

This sounds a little confusing but it is fairly easy..i sure hope this helps you out..Good Luck

kia and hyundai are the same, parts are interchangeable.you could also use "hermetite gold" face to face without a gasket. you need to apply in evenly to both surfaces and then torque the head down in four stages.i.e.20lbs/ft.....50lbs/ft.......100lbs/ft then down to max torque.we used to use this in the sixties for lotus/ford engines BUT they were rebuilt after 3 or 4 races.worth a try if you cannot get the parts.

the dealer will have to do it its a program in the car computer that is set up to monitor tire pressure since you changed the pressure the computer knows the change and is letting you know there is a possible leak.you can have it altered at the dealer only.

assuming this is the "C" engine 8th digit on VIN plate. Use new bolts. torque first step to 25lbs, 2nd 50lbs, then 3rd 50lbs, then 1/4 turn.

The engine air filter in a 2002 lexus ES300 is located in a black box behind the battery. It should have a thick air hose connecting to it which is the air intake. Open the two 10 millimeter bolts holding it together and open it and replace the filter.