Clear editor. Don't forget to replace the missing light bulbs for the sensor lightsI'm sure you didn't, just my small attempt at humor in an otherwise difficult situation. Otherwise, you might be replacing a sensor thats doing exactly what its supposed to! Did you reset the ECU after you did the repair? Owning 2 older vehicles makes lots of sense to me. My husband's Lexus RX 300 SUV had transmission problems at about 60,000 miles. Paste as plain text instead, I have already replaced 2 knock sensors and intermediate wire - Answered by a verified Lexus Mechanic . Any suggestions would be helpful. Hey There! But keep in mind that OEM parts will cost more, and you need OEM parts if your vehicle is still under warranty. Anyone ever install a flakey new part only to have to replace it. Started Thursday at 11:23 AM, By You can always just put it back together and run it while you wait for any parts or supplies. 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While this is a useful feature to protect your engine when something goes wrong, it can also make it a bit frustrating to troubleshoot a faulty knock sensor. There are tons of sensors built into your vehicle, and they perform a variety of functions. Took to dealer and was told Over Drive solenoid is not working. Where is the OD solenoid? Join the Lexus Owners Club and be part of the Community. Keep in mind that not all knocks are loud, so if you dont know what youre looking for, its best to have a certified mechanic take a look at it and make a diagnosis. When it detects a danger, it will warn you and, if need be, adjust speed, steering and braking to help you avoid an accident or make the consequences less severe if an impact does happen. Thats because depending on what you drive, the knock sensor can be challenging to access without removing other components. Theres a bunch of tutorials on the internet. a. Lexus RX300 Knock Sensor Replacement. Well, I would've loved to have you in my Air Force Combat Unit. Engine knocking or pinging is fatal to your engine, and it can cause serious damage to it within seconds. The questions should I just pay for the parts. Given that, have you tested the sensors to make sure that they are the problem? Its a lot of work to get to the harness (and sensors) so Im considering putting in two new sensors (and the coolant bypass hose ofcourse) while Im changing the harness to avoid this job down the line. Real estate for sale in Lesmo A wide range of offers with photos and prices Help in finding and buying property Free advice. Before you replace any components, make sure that you have a proper diagnosis. I am having a prolem that appears to be fairly common with the RX300's (no overdrive and codes indicating knock sensor problems). If the engine was pinging the knock sensor would do its job and retard the timing. Sometimes lately when my engine is running I hear a small . Powered by Invision Community, Lexus RX300 / RX330 / RX350 / 450h / F-Sport Club, Electric fan conversion melting fuses out, Lexus Model: 2008 Lexus RX400h 2nd Lexus. If the knock sensor does detect a problem, it illuminates the check engine light and reduces overall engine performance to protect your vehicle. RX - 1st Gen (1999-2003) - rx300 2000 overdrive issues, and knock sensors - Two days ago i replaced my supposedly faulty knock sensors with auto zones duralast knock sensors, after 9 hours of work the code still pops up for a knock sensor. When my code (P0330) came up for knock sensor I cut the wire at the ECU then spliced it in with the good one. Okthat is a good suggestionmaybe the wiring harness can be checked for shorts and repaired. Many on these site tell you to replace the wiring harness (short one) to Knock sensors.Unfortunately it would mean complete tear down again. Everything points to a wiring issue, like @Nevada_545 says. 2 Knock Sensors found View related parts 1999-2003 Lexus RX300 Knock Control Sensor Part Number: 89615-12090 Vehicle Specific If you notice these things happening, you should have a certified mechanic from YourMechanic inspect why the car is slow to accelerate. The OEM part is close to $200 a pop from the dealer. MSRP and price exclude taxes, installation, shipping, and dealer charges. By A quick google suggests there are at least a few possible causes, some of which are also conditions not specific faults that could likely have 100+ other possible causes -https://www.fixdapp.com/blog/p0325-code. That should tell you if theyre functioning. I would have just "spaced"the idea of taking a code reader with me, while looking at a used vehicle. Did you use original equipment sensors? Is it in the transmission main control module or on the outside somewhere. After that I replaced the igniter coils, spark plugs, fuel filter, transmission fluid filter andspeed sensors on the transmission. It also highlighted some of the innovative design and engineering that will feature in its new generation models. Either the knock sensor harness is broken or the knock sensor itself is beginning to fail. Learn more here: 6 Causes of a Knocking or Pinging Car Engine. Customer : . You can post now and register later. These strange noises are known as knocks and indicate a deeper problem in your system that you need to troubleshoot. But by reducing the amount of force, your engines computer also reduces the amount of power that the engine can produce. It's doing it now, worse than ever. This most likely means that the wiring harness is bad. No disrespect intended, but I think more diagnosis is in order before blaming the knock sensor wiring harness. I found this out when I went to get my car smog checked and upon investigation, it was pretty obvious that the instrument panel had been tampered with. My vehicle started acting really strange, started idling really rough, attaining a normal driving speed (35 to 40 MPH) was difficult, et cetera. I would first get into that area and investigate before buying any parts. Fits RX 300 (2000 - 2003)Knock Sensor - Repair or ReplaceA failed Knock Sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, but it does cause your Lexus RX 300 to operate inefficiently and produce higher emissions. If your vehicle has a faulty knock sensor, it wont only affect how quickly it can accelerate, but itll also lose its top speed and torque. MechanicalMariner Do Not Sell or Share My Personal Information -. Thanks and Best regards Rene The hack is a temporary fix only if you just have one knock sensor out. I own 4 running, completely functional Honda Elite scooters (85 to 90), and I ride one of them daily, but all 4 get exercise. I replaced that myself with the OEM brand. Although my Lexus is a 2002 RX300, your situation is useful for me. 2000 Lexus RX 300 does not shift to overdrive. The most common knock sensor problems include: Illuminated Check Engine Light. Still getting code p0330 and also p0171. It's a lot of work to get to the harness (and sensors) so I'm considering putting in two new sensors (and the coolant bypass hose ofcourse) while I'm changing the harness to avoid this job down the line. PLEASE VERIFY ANY INFORMATION IN QUESTION WITH A SALES REPRESENTATIVE. $723. It is constantly checking the traffic around you and the road ahead, on the alert for potential accident risks. Paste as plain text instead, Help about hybrid battery after jump start, Lexus Next Chapter delivers wide-ranging technology innovation, DIRECT4: how Lexuss torque control technology delivers driving rewards and comfort in the new all-electric RZ 450e, All-new Lexus RX delivers five-star safety, Lexus Electrified to reinvent the driving experience, Hybrid electric with a performance edge: the all-new RX 500h. Below we have a more detailed list of the signs of a bad or failing knock sensor to look for: Just because you have a check engine light for your knock sensor doesnt mean that theres anything wrong with the sensor, but there could be! But keep in mind that this is if the knock sensor is faulty, and not if you have an engine knock. Powered by Discourse, best viewed with JavaScript enabled, Just swap the harness for <$100 in parts and a risk and extra half day of work. 1999 lexus rx300 p330 code knock sensor 2 circuit problem. Clear editor. I would love to dream up some other reason as to why my problem is happening, and I usually do, but this seems pretty straight forward. The Commons Common Causes of P0325 are You cannot paste images directly. More importantly, how much is it going to cost you? Im staying away from the budget line of parts. Lexus has set a course to develop new technologies and vehicles that maximise the potential of electrification not just to improve energy efficiency and reduce emissions, but also to deliver a higher level of performance, dynamics and driver engagement. Pasted as rich text. Wires are accessed at the ECU connector block for convenience rather than trying to jumper the Knock Sensor leads under the hood. Anytime that your engine reverts to default values, youre not getting an optimized performance. If the cables are good, then maybe the sensors are bad, but it does seem unlikely that both would go at the same moment. June 22, 2020 in RX 300 / RX 350 / RX 400h / RX 200t / RX 450h Club, I guess this has been asked may times previously. I could pull the part and compare, reorder if necessary. Thats my trick with old cars. If you have an account, sign in now to post with your account. You pay for what you get, it cost you 1,700 if you invest to get it fixed 1,000 you can still sell for 2,700 to 3,000 and drive it around until you ready to leave. Failed PCM. My overdrive kicks in and the check engine light is off. Started 8 hours ago, By I've been trying to find the cheapest solution and this is definitely the one. The most common is that it is bolted to the engine block. 2023 CarGurus, Inc., All Rights Reserved. Genuine are ridiculous at around 175.00 each ( 89615-12090.). I guess it was really buried deep in the engine, the designers must have decided it was such an unlikely part to fail, no worries if it costs the owner 8 hours of labor billing to replace. But if you can do the job yourself, you can normally save a few hundred dollars. The OEM cable has a sticker on the connector meant for bank 1, the bank 1sensor is closest to the firewall of you car (closest to the windshield). Car running horribly. Thermostat housing from Advance Auto, dont remember brand, leaked after 4 months, original lasted 12 years. Car is running really well again with no errors even after a few weeks. Upload or insert images from URL. Most pro mechanics arent good at diagnostics either, from my experience. Theres a couple guys on youtube who have great vids on diagnostics with the scan tools, schrodingers box and scanner danner. They are oem. Torques: Knock Sensors: 30 ft/lbs Lower Intake Manifold: 132 in/lbs Intake Plenum 32 ft/lbs Unfortunately, that also makes it more likely that you need to hire a certified mechanic in the first place. When I checked the error message I got PS300 PS301 and PS302, which from what My Lexus rx300 53 plate has died I have lights and Find on the map and call to book a table. Without removing the knock sensor and testing what more diagnosis would you recommend? Identify the two knock sensor inputs to the computer and clip the wire about 1 inch back from the back of the connector and attach the knock sensor overlay wire to the computer input wires. Because of the wide variance in a knock sensors locations, its best to have an idea of what youre looking for before you start. he was able to get a mirror or scope under the intake and observed some signs of rodent damage on the harness. plz help asap. Thats a lot of labor to change out. It's common on these. So, I got home and started looking for low cost sensors, as you had done. You can post now and register later. Finally, keep in mind that these are electrical connectors, so youll be able to tell if youre looking in the right area if theres an electrical connector sticking out of the back of the sensor.

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