Question about 1999 Lexus RX 300

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99 Lexus rx 300 idling high and running very rough

The check engine light came on the other day but went off after I removed the battery cable but a few days later it came on again. It comes on occasionally and have been told a few years ago it was an o2 sensor. The light doesn't come on when I start the car to warm up only when I drive. The check engine light starts flashing and running very rough like the car is missing. We've had the car since it was new and have only ever had to replace the idle control valve about 5 years ago. I have put around 500 miles on the car in the last 1 1/2 week.

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  • vln225 Jan 27, 2009

    I took it to Advance... there were multiple faults on most cylinders. Filled it with gas (was down to 1/4 tank) and added injector cleaner and Heet. Running a fraction better.

  • Anonymous Mar 20, 2009

    i have the same problem

  • Rick Byrd
    Rick Byrd May 11, 2010

    hi, since you haven't taken your car to a shop , why don't you stop by a parts store and let them scan it for you and explain the results to you , then go from there .

    J5


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6 Suggested Answers

  • 1 Answer

SOURCE: 2002 RX 300

I have a 2001 RX 300 and mine has done the same thing. The first time it happened the dealer had me bring it in. It was under warranty, and they replaced something, which I can't remember. Then it happened a year or so ago, and the service rep at the dealership told me that her car does the same thing, and I should just let it reboot itself in a day or so. It did it two days ago driving back from a long trip. The service rep said to bring it in because she didn't know what was going on (I think she was new).

It's now resolved itself again. It must be a fluke with the model, but I don't worry about it.

Posted on Sep 12, 2008

  • 160 Answers

SOURCE: where is sensor 1 bank 1 located on lexus rx 300 2002

facing engine bank1 sensor 1 should be the one at the firewall area in the manifold

Posted on Nov 12, 2008

bunnydawg
  • 5158 Answers

SOURCE: How many O2 sensors on a 1997 Lexus ES 300?

according to the manual i have... it has three.... one in the exhaust manifold.... and two in the exhaust pipe..... slightly vauge on the exact location of the last two sensors... but looks like it is after the catylitic converter.

Posted on Apr 15, 2009

mx5turbo92
  • 545 Answers

SOURCE: What is the cost of a 90000 mile service for a lexus RX 300?

$700

timing belt
idler pulley
water pump
timing belt tensioner
valve cam gasket
coolant flush
spark plug
oil change
pcv valve
tranny oil change
differential fluid cahnge
drive belt
upper/lower radiator hose
brake system flush
air filter

good luck,i hope this help pls dont forget to rate me thanks

Posted on Jun 05, 2009

josephaddyso
  • 85 Answers

SOURCE: replaced battery, a few days later engine light

please remove the negative battery terminal wait for 15seconds then return! start the engine! you can get me on+2540722528209

Posted on Jun 17, 2009

  • 6 Answers

SOURCE: 2002 Lexus RX 300 stalls

There is another post that I answered that is the same thing. You need to clean your IACV. See other post for details!

Posted on Jul 20, 2009

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Have fun !!

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There is another post that I answered that is the same thing. You need to clean your IACV. See other post for details!

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please remove the negative battery terminal wait for 15seconds then return! start the engine! you can get me on+2540722528209

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Where are knock sensors in my 99 Lexus RX 300 ?


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