Question about 2001 Lexus RX 300

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Check engine light need help

Put new battery in 2001 lexus rx300 drove about 45 miles. check engine came on.code p1135 and p1130. car runs great. also i put fuel injector cleaner in it pior. what is happening and how to fix the problem?

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  • garyz39 Mar 03, 2009

    intermittent check eng light....code 1130......i'm guessing the air fuel ratio sensor (basically looks like typical o2 sensor)

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Hi kelly4578, Your Air/Fuel Ratio sensor is failing. It is also called the Bank One sensor. The sensor itself is about $200 from a parts distributor and somewhat more than that at a Lexus parts department. Labor to remove the old sensor and replace it with the new one will also run you several hundred dollars.

If you're mechanically inclined, you can tackle this repair yourself. But you must first determine the exact location of the failed sensor. And be careful not to strip the threads in the manifold when you remove the old sensor.

Let me know if this helps and please rate this solution. lone99star

Posted on Jan 12, 2009

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3 Answers

I have a 2000 Lexus rx300 with a code p1130. what is the location of the sensor causing this code ?


That code doesn't mean any sensor is defective, it can be the sensor, problems with the engine or a faulty fuel injector or the wiring or the engine control computer that triggered the fault.



P1130 Lexus Air Fuel Ratio Sensor Circuit Range Performance Malfunction...

Apr 30, 2017 | Lexus Cars & Trucks

1 Answer

2001 Lexus RX300 VCS/engine light


You don't have to worry much, but it has to be fixed. What was the code #?

Oct 10, 2017 | 2001 Lexus RX 300

1 Answer

Code p1130 p1135 p1150 what are this ??? Thanks


p1130= bank one sensor one, Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (sensor is located underneath near the firewall) p1150= bank two sensor one, Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Directly behind the radiator) p1135=bank one sensor one, Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank one sensor one sensors run around $206 Bank two sensor one sensors run around $150
basically its o2 sensors if your mechanically inclined its a good weekend job to tackle yourself and safe a couple hundred dollars in labour, you would need to invest in an o2 socket and some pbblaster penetrating lubricant to get them out..hope this helps you and dont forget to rate if it does help thanks

Jan 07, 2011 | 2001 Lexus RX 300

1 Answer

I have a 2000 Camry - 6 cylinder with about 180,000 miles on it. The Check engine light came on and it showed three codes - P0125, P1130 and P1135 - We put in a new thermostat - and still the check engine...


Was the computer reset after the thermostat was replaced?? If not, it must be reset to clear prior codes. as for the p1130/1135, they are related here is some info>>>>http://www.engine-light-help.com/toyota-engine-light.html

Mar 11, 2010 | 2000 Toyota Camry

1 Answer

I have a 2003 Lexus es300 with 42,000 miles. The check engine light came on. Car is running fine.. Is this Lexus trying to get the car in to charge for service and, how can the light be turned off


This light is not programmed to a service interval, it is a fault sensor code light.
The check engine light will come on after refueling if you have a loose gas cap. It may also come on if you have an exhaust leak or a fuel mixture issue casued by one of several 02 senosrs malfunctioning .
If the issue is the gas cap often after releasing and tightening the cap your light will go out within a day or two of driving. You could also add some fuel injector cleaner.
Sometimes the lights will need to be reset with a code reading device plugged in under dash. This device will read out engine fault codes and help determine the problem are in the engine.
If you have a failed O2 sensor and continue to drive the ECU will adjust your fuel mixture in an attempt to correct the problem, so it is best to have the readout checked.
Lexus service is second to none and Lexus is not out to take your money, only to ensure a long and satisfying ownership with a top performing car. You are VERY fortunate to have an 03 with such low mileage. My 2001 RX300 has over 150,000 miles and is still going strong, same engine as yours.
Post back with an update

Dec 28, 2009 | 2003 Lexus ES 300

1 Answer

1999 Camry 4 cyl. 104k miles, throwing codes p0125, p1130, p1135


P0125- Engine not reaching operation temp quick enough. Possible problems:
  • Insufficient warm up time
  • Low engine coolant level
  • Leaking or stuck open thermostat
  • Faulty coolant temp sensor
  • P1130- A/F Sensor Circuit Range/performance, Bank 1 Sensor 1

Oct 15, 2009 | 1999 Toyota Camry

1 Answer

Code p1130. where is the sensor located on a 2001 rx300 lexus


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. 

Jun 26, 2009 | 2001 Lexus RX 300

3 Answers

99 RX300 Engine code keeps coming up lean


Check for vacuum leaks. ie, vacuum lines them selves, the rubber tube that runs from the air filter to the throttle body. If it has a plastic intake manifold, possibly the rubber port seal gaskets between it and the engine. Lean codes are set when the PCM isn't monitoring all the air coming into the engine (vac leak) or low fuel pressure.

Jun 24, 2009 | 2001 Lexus RX 300

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