Question about 1999 Lexus RX 300

2 Answers

99lexus rx 300! Replaced 2 knock sensors and harness,2 cats,tranny flush, bosch platinum plugs, not iridium!! 11.2 litres Hwy,14.2 city Full tank of gas at $1.08 litre, 341k,not good ! Any insight!!

Posted by on

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Habit-Forming:

    Visited the website for 3 consecutive days.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 163 Answers

Get rid of those Bosch garbage plugs to begin with, put in denso or ngk, like it came with from the factory. Also I would consider replacing the oxygen sensors, as they have more to do with fuel economy than knock sensors do. If you do replace the oxygen sensors, again, use the denso brand, as that is what it came with from the factory and is designed for that car.

Posted on Feb 01, 2017

Ad

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Lexus Master
  • 53,768 Answers

Run the fault codes to determine if there are any sensors operating out of set parameters
your indications are that the HO2S sensors are not operating correctly or cannot set the ECM for the air/fuel ratio
could be a problem MAP/Baro sensor, faulty injectors (spraying and not atomizing), low fuel pressure or simply at 17 years old or a guestimate Klm of around 340,000 klms the motor is a bit tired
anyway run the fault codes first and then having a wet and dry compression test ( a qualified service mechanic will know what I mean) done will determine the engine condition

Posted on Feb 01, 2017

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Jonah Oneal

  • 14092 Answers

SOURCE: Very high fuel consumption on 2002 Honda Odyssey

transmission slipping dragging brakes.timing off worn timing belt .bad spark plugs + wires +coil.defected valves and worn cam shaft.use scanner to check oxygen sensor. run engine 5 minutes look at scanner . should read closed loop . if read open loop replace oxygen sensor.

Posted on Apr 03, 2009

Anonymous

  • 1 Answer

SOURCE: 6.5 litre diesel engine, blowing lots of black

my 1995, 6.5 diesel turbo just shuts off when running

Posted on Dec 21, 2009

Anonymous

  • 1 Answer

SOURCE: location of knock sensor and if there are 2 on a

yes,it has 2 of them and they are under the intake manifold

Posted on Jan 09, 2010

BCAS1298

Alexander Mimun

  • 3092 Answers

SOURCE: replace knock sensor on 2001 chevy 4.8

You have two knock sensor's, both sit under the in-take magifold on top of the engine, you will have to remove injector rail and in-take.

Posted on Apr 13, 2010

mclaen

  • 486 Answers

SOURCE: 2003 Chevy Suburban, 5.3 litre ;knock sensor light

I don't have a actual cost for you but it takes about 2.6 hours to do the job and the sensors are usually about $60.00 each. I use the OEM sensors as I've had the best luck with them.

Posted on Jun 15, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I recently changed both knock sensors and wiring harness on my 99 Lexus rx 300! I purchased the parts on ebay and they state (OEM PARTS) Check engine, P0330,


code p 0330 refers to knock sensor (KS)2 bank 2 ---circuit malfunction===causes wiring--KS---ECM
it is possible that in changing the harness there is a problem connection or the connection to ks2 is not correct ( not on properly)

Oct 01, 2016 | 1999 Lexus RX 300

2 Answers

Which bosch spark plugs Will work on a 2008 Honda accord 4 cylinder


This would equivalent to OEM
Iridium spark plug
Bosch part #9614 around 6.99 each

You can run other Bosch plugs from copper and up but you car calls for the iridium plugs hope this helps..
Dennis.....

If you need further help, reach me via phone at https://www.6ya.com/expert/dennis_f849d3d6a68c6430

May 23, 2016 | Honda Cars & Trucks

1 Answer

I need to know what the spark plug gap setting should be for a hyundai atos prime 2006


2006 Hyundai Accent Gl 1.6 L4 C FI

STANDARD BKR5ES-11 GAP 044
V-POWER BRK5E-11 '' ''
G-POWER BKR5EGP ''
LASER PLATINUM PFR5N-11 ''
OE LASER IRIDIUM IFR5E-11 ''
IRIDIUM IX BKR5EIX-11 ''

DO NOT TRY AND GAP THE PLATINUM OR IRIDIUM TYPE.
I hope this engine is the same for you,if not let me know the engine code.

Apr 02, 2011 | 2006 Hyundai Accent

1 Answer

I recently bought a 2000 lexus rx 300> check engine light came on and i was locked out of overdrive< knock sensors and wiring harness with oxygen sensor replaced for !000. now check engine...


I had the same problem with my RX. Had both knock sensors replaced and the problem went away. Be sure to take it to a Tech that has a good scan tool so he can pull the codes and narrow down the problem, From what I understand a constant check engine light is usually not a big deal probably a sensor but a blinking light means major trouble. Take it to a shop that specializes in Toyota and Lexus.

Feb 05, 2011 | 2000 Lexus RX 300

1 Answer

What is the real cause for the engine alarm to come on stating "knock sensor, bank 2" when one cannot hear the engine knocking?


sometimes the sensor it self goes bad and or the wire harness.cannot explain why but it happens on toyota's and lexus.

Jun 12, 2009 | 2000 Lexus RX 300

1 Answer

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

Jun 05, 2009 | 2001 Lexus RX 300

Not finding what you are looking for?
1999 Lexus RX 300 Logo

Related Topics:

65 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexus Experts

Marvin
Marvin

Level 3 Expert

85223 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Lexus Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...