P0420 lexus is300 - Now for the Causes for these codes: Common Problems That Trigger the P0171 and P0174 Code. PCM software needs to be updated. Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc.) Mass Airflow Sensor (MAF) Plugged Fuel Filter or weak Fuel Pump. Plugged or dirty Fuel Injectors.

 
Symptoms. The most common signs of clogged catalytic converter in Lexus RX are: limited performance above a certain speed or loss of performance, irregular running of the engine, unusual exhaust gas odor, poor fuel economy, engine check light illuminates, and sometimes rattling noises.. Sandra smith bikini photos

This article applies to the Lexus ES (2007-2014). Replacing the stock exhaust with an aftermarket system is relatively easy on your Lexus. The most difficult aspect of this job is getting the clearance under the vehicle if you do not have access to a lift. Removing and replacing the catalytic converter is a little bit harder and a bit more ...P0171 and P0174 Error Code Fix On A Lexus ES300: There are a few different things that can cause a P0171 or P0174 code. But if there is no symptoms in the ...Dec 24, 2014 · This article applies to the Lexus ES (2007-2014). Replacing the stock exhaust with an aftermarket system is relatively easy on your Lexus. The most difficult aspect of this job is getting the clearance under the vehicle if you do not have access to a lift. Removing and replacing the catalytic converter is a little bit harder and a bit more ... p0420 Cat system effi below threshold, bank 1. p0120 TPS sen a circuit. p0306 cyl 6 misfire. p0301 cyl 1 misfire. p0300 random misfire. Quite the line up. So far, with some tinkering under the hood, ive got the misfire codes down to just p0300 (random misfire) and p0301 (cyl 1 misfire), and the evap codes still pop up, as well as the p0420.I got an IS300 2004 Lexus keep giving me P0420, TRAC OFF code every 200 miles. question, how can i solve this? - Answered by a verified Auto Mechanic - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website.Hi there. I hope all is well with everyone. My wife and I have a 2000 ES300 Platinum Edition. The car has been simply wonderful in our three years of ownership. Recently however, the check engine/trac light illuminated and after a quick scan code PO446 was discovered. I started by tightening the ...Found the tank leak for the p0440 and p0446 codes.Applications: Lexus ES300 2003-02, Lexus ES330 2006-04, Toyota Avalon 2004-00, Toyota Camry 2004-00 Replaces Toyota #90910-12199 911-630 Charcoal vapor canister • The canister cracks due to exposure underneath the vehicle • The failure results in vacuum leaks and illumination of the check engine lightNo smartphone mirroring. Super thirsty. View 34 images. Comfortable, conservative, solid – three words that describe the 2020 Lexus IS300 Luxury mid-size sedan. It’s been around a while, the ...Browse all: Lexus IS Engine and Powertrain Guides. Oxygen Sensor (O2) Bank 1, Sensor 2 DIY. Reply Subscribe . Thread Tools ... The 14ohm is from the service manual for rx300 for testing the o2 sensors...the b1s1 and b2s1 shows around fuel trim around 18% at idle with 0.5v... Reply Like 11-06-17, 07:52 PM ...What is the Cost to Diagnose the Code P0430 Lexus? Labor: 1.0. The cost to diagnose the P0430 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. A few days ago the check engine light came on and started blinking. -. The engine lobes and it's seems quite likely that one or more cylinders are misfiring. -. I got the codes and they are P0300, P0303, and P0304. I did some search on the forum and it seems that most of the time the culprit is the ignition coil.Apr 19, 2014 · p0306 cyl 6 misfire. p0301 cyl 1 misfire. p0300 random misfire. Quite the line up. So far, with some tinkering under the hood, ive got the misfire codes down to just p0300 (random misfire) and p0301 (cyl 1 misfire), and the evap codes still pop up, as well as the p0420. Just typing this im seeing that the consistent cyl 1 misfire and cat bank 1 ... Dec 31, 2014 · 2002 Lexus GS300 175K Miles Symptoms: (1) terrible gas mileage and (2) check engine light - pulled codes p0420 and p0430 I used a scantool application to pull the codes and monitored the OS 2 sensors' … Most annoying code I ever had was VSC. I learned after some research that as long as any CEL code was active, VSC would refuse to operate (bastard). After spending a few months clearing dirty ABS wheel sensors and oxygen sensor codes, VSC still refused to go out. So I did the ZPC, zero-point calibration.P0420: cat system below threshold (bank 1). P0430: cat system system below threshold (bank 2). You have 3 areas to check: leakage on the exhaust system, O2 sensors & the 3 way cat. You need a Lexus scan tool or an OBDII scan tool to check the waveform of the O2 sensors before and after the cat to see if the catalyst has deteriorated.May 11, 2019 · Definition Symptoms Causes Diagnosis Lexus IS 300 P0420 Quick Info Table Lexus IS 300 P0420 OBDII Code Defined P0420 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. Here’s the technical definition for your car: P0420: Catalyst System Efficiency Below Threshold (Bank 1) Catalyst System Efficiency What is the Cost to Diagnose the Code B1421 Lexus? Labor: 1.0. The cost to diagnose the B1421 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.Lexus IS300: Hello, I have a 2002 Lexus IS 300 with about Hello, I have a 2002 Lexus IS 300 with about 96k miles. It began throwing a CEL with P0440, P0441, and P0446.Labor: 1.0. The cost to diagnose the P0450 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …Nov 7, 2015 · So I plugged a OBDII in and it gave me a couple codes to do with the TPS. The codes were p0120 and p1211. I replaced the tps and got throttle response back but it does not respond until halfway into pushing the pedal. Then I plugged the OBDII back up and now the code p0120 is still there. Any help is appreciated greatly! Code P0420 Lexus Description. The Engine Control Module (ECM) uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the air-fuel ratio sensor, sends pre-catalyst information to the ECM.VSV Replacement: 2 to 3 hours ($50 / $225 / $280)THE CODE HAS RETURNED.This Lexus is300 had a P0440 code that did not go away after replacing the seal on the...Lexus Model: 2000 Lexus ES300. Author. Posted November 6, 2007. As previously posted, I got CEL and code came out P0420. So i replaced Cat. Converter @ 279,XXX. (Universal) Now i have 284,000 on my car. Again CEL shows up. run code through Autozone : P0420. While CEL on I was driving and light disappear.A very common trouble code with the Lexus IS 300 is the P0440 code. This trouble code references a number that is given to you when you plug your IS 300 into a OBDII scanner. P0440 Indicates that something is wrong with the EVAP system. It does not allude to what that problem might be. P0440: Evaporative Emission Control System …🏎 P0430 Cheap Permanent Fix for my Lexus IS300 P0420 ch…VIP GOLD. ₦ 13,000,000. Lexus RX 2010 Blue. 2010 Foreign used Lexus Rx 350 Low mileage Duty fully paid Well functioning engine and gear Clean... Foreign Used. Automatic. ₦ 19,000,000. Lexus GX 460 Premium 2013 Silver. 2013 Foreign used Lexus Gx460 Low mileage Duty fully paid Thumbstart Three roll seater...How to replace the Bank 1 Sensor 1 O2 Oxygen Sensor on the following models. 1997-2001 Lexus ES 300, Toyota Camry 1997-2001, Toyota Solara 1999-2001 and Toyo...While driving on the motorway today my check engine light came on. Scanned the code and it reads: P0420 - Catalyst System Efficiency Below Threshold Bank 1. I have new Air/Fuel Oxygen sensors …A very common trouble code with the Lexus IS 300 is the P0440 code. This trouble code references a number that is given to you when you plug your IS 300 into a OBDII scanner. P0440 Indicates that something is wrong with the EVAP system. It does not allude to what that problem might be. P0440: Evaporative Emission Control System …Hello, I'm new here. I like to say that this forum is Great! Lots of Great people taking the time to help other and post valuable information. I just bought a 2001 IS300. Check engine light is on and throwing codes: P0161 - Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) P0171 -...00-05 Lexus IS300 - 3.0L 2JZ-GE - Check Engine Light ON P0420 & P0430 - Catalytic Converter Replacement Vehicle has check engine light on with trac light fla... Location: Idaho (ID) Posted June 7, 2012. A code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for. A damaged or failed oxygen sensor (HO2S) Downstream oxygen sensor (HO2S) wiring damaged or connected improperly. The engine coolant temperature sensor is not …What Does the P0420 Code Mean? Diagnostic trouble code (DTC) P0420 stands for “P0420 Catalyst System Efficiency Below Threshold (Bank 1).” It indicates that the exhaust system’s oxygen levels are below the required threshold in Bank 1, which can damage the engine’s exhaust and fuel system.The Lexus ES300 has a handful of common problems, such as the check engine light illuminating when it should not, ignition coil failure and sludge building up on the engine, says Repair Pal. Most of these problems are relatively minor ones ...JOHN aka Eauto. self employed. High School or GED. 25,484. Lexus ES300: I have a 1999 Lexus ES 300. Three codes I am getting. I have a 1999 Lexus ES 300. Three codes I am getting are P0420, P0446 and P0171. It seems the Po446 is related to the vapor Canister.Apr 23, 2015 · Used car dealerships will always try to minimize the number of costly repairs to maximize profit on a vehicle. The P0420 is an easily masked problem. The P0420 is what they call a "two trip" code. Meaning that exact conditions need to be met for the car's computer to test the efficiency of the catalytic converters.. and this needs to occur twice. California registered 2003 IS300 (158K miles) with P0420 code with check engine light on and TRAC OFF flashing. Front - Answered by a verified Lexus Mechanic We use cookies to give you the best possible experience on our website.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0420 Saving Repair Parts:C...The is has 3 different engine options with a #turbocharged I4 v6 or a 472 horse power v8. Lexus has made some exterior updates for 2023 with a new #FSport de...I just bought a 2001 IS300. Check engine light is on and throwing codes: P0161 - Sensor Heater Circuit Malfunction ... Remember those cat efficiency codes(P0420/P0430) can be caused by leaks in the exhaust, a failing O2 sensor, or bad cat. ... Community dedicated to Lexus IS Enthusiasts. Come in and enjoy our articles, …Hi there. I hope all is well with everyone. My wife and I have a 2000 ES300 Platinum Edition. The car has been simply wonderful in our three years of ownership. Recently however, the check engine/trac light illuminated and after a quick scan code PO446 was discovered. I started by tightening the ...If the voltage of the downstream oxygen sensor decreases and begins to fluctuate like the upstream oxygen sensor, it means that the oxygen levels are too high …I've got a 99 es300 with 120k miles and the power loss / fuel economy is an issue. The codes are p0446, p0420, p0330. I - Answered by a verified Lexus MechanicFeb 8, 2017 · How to Diagnose code P0440 EVAP system malfunction. P0420- Catalyst inefficiency hi guys i have a 2000 GS300 with a CEL on. its at 107500 miles its something about the catalyst being inefficient. i've check the code …IS300 drive shaft. 1 / 1. Performance - IS300 2002 found a P0302 misfire cyl 2 - So, I have changed all spark plugs, wires, connectors, and coils. Ran into a little issue with a broken screw but JB weld fixed that. The car was running great 2 days after repair, then yesterday the engine came on. The Track is off.p0306 cyl 6 misfire. p0301 cyl 1 misfire. p0300 random misfire. Quite the line up. So far, with some tinkering under the hood, ive got the misfire codes down to just p0300 (random misfire) and p0301 (cyl 1 misfire), and the evap codes still pop up, as well as the p0420. Just typing this im seeing that the consistent cyl 1 misfire and cat bank 1 ...Make sure the replacement converter meets Lexus specs. Those "universal" or "discount" converters do not meet Lexus specs and the P0420 will quickly return if one of these types are used. Unfortunately, due to the setup, this is an extremely common fail item, not just on this vehicle, but on many different Toyota/Lexus models. Very common.Aug 27, 2022 · As the code description implies the P0420 code means that the vehicle's Engine Control Module (ECM) has detected that the Three-way Catalyst Converter is not working properly (it is not as efficient as the factory is expecting). P0420 and P0430 P0420 means Catalyst System Efficiency Below Threshold, Bank 1 P0430 means Catalyst System Efficiency Below Threshold, Bank 2 It means that the O2 sensors are good, and the O2 sensors are telling you that your catalytic converter, in the exhaust system is not working fine, as its emissions are polluting the air too much.What Does The P0420 Code Mean? The P0420 code indicates that the Engine Control Module (ECM) has identified a decline in the efficiency of the catalytic converter on Bank 1. This could be attributed to a malfunctioning catalyst or potentially be a false alarm triggered by a defective O2 sensor.kponti said: Sounds more like a catalytic problem than a sensor problem. The code reads: P0430- Catalyst System Efficiency Below Threshold (Bank 2) Using a simulator will do the job of removing the cel, but I bet your car will eventually (if not already) run a little like crap (just sometimes).Product Details. EZ CEL Fix oxygen sensor eliminator is conveying the Electronic Engine Management with mimicked, fluctuating voltage signal and overrides the Electronic Control Unit into thinking the emissions are normal. Lexus IS300 oxygen sensor simulator will allow you to drive without cat and still keep the service engine soon light off.ClubLexus - Lexus Forum Discussion. Lexus Model Forums. RX Models. RX - 1st Gen ... USA RX300 have the charcoal canister integrated into Evap Canister assemply, ... Check Engine P0420 & Air Filter. ayonnebay. ES - 1st to 4th Gen (1990-2006) 10. 04-12-09 03:57 PM.Lexus Model: 2000 Lexus ES300. Author. Posted November 6, 2007. As previously posted, I got CEL and code came out P0420. So i replaced Cat. Converter @ 279,XXX. (Universal) Now i have 284,000 on my car. Again CEL shows up. run code through Autozone : P0420. While CEL on I was driving and light disappear.Any idea on what it could be for these codes to get my power back. It's a 2001 Lexus IS300 with like 217,000 miles. Submitted: 3 years ago. Category: Lexus. Show More. Show Less. Ask Your Own Lexus Question. Share this conversation. Answered in 1 day by: 9/8/2020. Lexus Mechanic: ... p0420, and p0430 on my 2003 lexus is300.Hello, I own a 1995 Lexus ES300 with 130,000 miles, and a 1999 Lexus ES300 with 115,000 miles. Over the past year both cars almost continually have the Check Engine light on. On the 1999 Lexus, when t … read moreLocation: Idaho (ID) Posted June 7, 2012. A code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for. A damaged or failed oxygen sensor (HO2S) Downstream oxygen sensor (HO2S) wiring damaged or connected improperly. The engine coolant temperature sensor is not …I noticed that both codes P0420 & P0430 appears (in the same time) more frequently than few months ago. It happens when system is in Closed Loop (warmed) but not enough ... Lexus has opened pre-sales for the all-new LBX, just eight weeks after the “breakthrough crossover” made its world debut. Picked By Lexus Owners Club, August 11.IS300 drive shaft. 1 / 1. Performance - IS300 2002 found a P0302 misfire cyl 2 - So, I have changed all spark plugs, wires, connectors, and coils. Ran into a little issue with a broken screw but JB weld fixed that. The car was running great 2 days after repair, then yesterday the engine came on. The Track is off.scanned it and got dtc code P0420 (catalyst system efficiency below threshold) i looked at some live data while at idle with engine at operating temp results: 02 sensor 1 bank 1: 0.845 to 0.75 volts.... fuel trim 0 to +8% fluctuating. 02 sensor 1 bank 2: 0.60 to 0.760 volts.....fuel trim -1.6 to +1.6 fluctuating.What is the Cost to Diagnose the Code P0128 Lexus? Labor: 1.0. The cost to diagnose the P0128 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.Mar 1, 2012 · #1 · Feb 29, 2012 I have a 2002 Lexus IS300 with this curse of a code that never goes away. My car was randomly selected for a smog lab inspection by the DMV in order to reinstate my registration, however i have a CEL that keeps recurring P0420 (Catalytic converter efficiency below threshold BANK 1) So far ive done the following to attempt the fix: Apr 19, 2014 · p0306 cyl 6 misfire. p0301 cyl 1 misfire. p0300 random misfire. Quite the line up. So far, with some tinkering under the hood, ive got the misfire codes down to just p0300 (random misfire) and p0301 (cyl 1 misfire), and the evap codes still pop up, as well as the p0420. Just typing this im seeing that the consistent cyl 1 misfire and cat bank 1 ... P0141 DTC stands for Oxygen Sensor Heater Circuit Malfunction on Bank 1, Sensor 2. It shows that the onboard heater circuit isn’t operating normally on the downstream oxygen sensor from bank 1. With a fault in the heater circuit, the PCM sets the P0141 trouble code. …2005 Lexus IS300 with a P0980 Shift Solenoid C Control Circuit High Open Short Valve error code. This is me Fixing it. @Squishey DONT CLICK THIS: https://ti...Dec 24, 2014 · This article applies to the Lexus ES (2007-2014). Replacing the stock exhaust with an aftermarket system is relatively easy on your Lexus. The most difficult aspect of this job is getting the clearance under the vehicle if you do not have access to a lift. Removing and replacing the catalytic converter is a little bit harder and a bit more ... If you are looking for a new or used Lexus in Kansas, there are several things you can do to find the best deals. In this article, we will discuss how to find the best deals on Kansas Lexus cars.Failed Emissions test with following 3 codes; P0420, P0430, P0446. P0420 and P0430 are Bank #1 and Bank #2 Catalytic are both below standard efficency. P0446 says the EVAP Carbon Canister is malfunctioning. Got qoute from Lexus for bank 1&2 Cat replacement $1725, for Carbon canister $585. Reset codes by battery disconnect.Step 3: Take Connector Apart. Use the tool from the Carving Set to pry out the red locking tab from the end of the connector. Using the same tool pull the gray weather seal out of the back of the connector. Next remove the two wires from the housing that correspond to the gray and black wires on the O2 sensor. Record where the two wires go …Save. nightsky.fusion · #7 · Jun 2, 2017. There are actually two VSVs on the car. You found the one up front but the other one is underneath the trunk. Here's a video for replacement (definitely a PITA). For reference, I bought a severely mistreated IS300 last year that had P0440, P0442 and P0446.DIY Complete Fix All P1354 Engine Error Code + How To Fix Guide! 3 15 18HONDA VTC/VVT/VTEC Accord/CivicLEXUS & TOYOTA VVT-I Engine Code (s): …Jan 12, 2010 · ASE Certified Technician. High School or GED. 15,501 satisfied customers. Lexus LS430: 2002 Lexus LS430 had check engine lights on, no. 2002 Lexus LS430 had check engine lights on, no VSC light. Codes required replacement of both catalytic converters. Check engine light is off but … read more. My Lexus RX300 vehicle emissions inspection report did fail and indicated the following trouble codes: P0420, P1150, P1300, P1305 and P1315. ... Hi there, My 02' RX300 had a P0420 code read out a month ago and the catalytic converter been replaced for …May 27, 2019 · This is just a potential fix for these codes. Not your actual fix. I am just sharing my experience on how to fix it. One of the most common trouble codes with the Lexus IS 300 is the P0446 code. This trouble code references a number that is given to you when you plug your I...Now for the Causes for these codes: Common Problems That Trigger the P0171 and P0174 Code. PCM software needs to be updated. Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc.) Mass Airflow Sensor (MAF) Plugged Fuel Filter or weak Fuel Pump. Plugged or dirty Fuel Injectors.00-05 Lexus IS300 - 3.0L 2JZ-GE - Check Engine Light ON P0420 & P0430 - Catalytic Converter Replacement Vehicle has check engine light on with trac light fla...The code PO420 is generally a problem with the catalytic converter, (bank 1 for the P0420). The ECM compares the waveform of the oxygen sensor which is located before the catalyst with the waveform of the oxygen sensor located after the catalyst. This is to determine whether the catalyst performance has deteriorated.DIY Complete Fix All P1354 Engine Error Code + How To Fix Guide! 3 15 18HONDA VTC/VVT/VTEC Accord/CivicLEXUS & TOYOTA VVT-I Engine Code(s): P0300, P0302, P03...TobiasSing Super Moderator · #6 · Oct 10, 2022. Yep. Every consistent p0420 or p0430 code always means new cats are needed. Anything else is a waste of money. The O2 sensors were working properly and doing their job, that's why the codes came up. If they were not working, there are separate codes for it. Reply.

14,739 satisfied customers. Lexus 2002: 2002 Lexus GS300 175K Miles Symptoms: (1) 2002 Lexus GS300 175K Miles Symptoms: (1) terrible gas mileage and (2) check engine light - pulled codes p0420 and p0430 I used a … read more.. Detroit metro free stuff classifieds craigslist

p0420 lexus is300

Jul 28, 2019 · Hi, love this site. Have a 2000 Lexus GS300, P0420 code popped up. Car runs great, no discernible performance difference, no strange noises, etc. P0420 Catalyst System Efficiency Below Threshold Bank 1 This car has a new MAF, replaced on a whim to trouble shoot a recent misfire issue. Most annoying code I ever had was VSC. I learned after some research that as long as any CEL code was active, VSC would refuse to operate (bastard). After spending a few months clearing dirty ABS wheel sensors and oxygen sensor codes, VSC still refused to go out. So I did the ZPC, zero-point calibration.Code reads P1150 after all resets. Vehicle is a 2000 Lexus RX300 with 90,000 miles. On-line research tells me it should be an air fuel ratio sensor & not an oxygen sensor (Bank 2 Sensor 1).Labor: 1.0. The cost to diagnose the P0450 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. The code PO420 is generally a problem with the catalytic converter, (bank 1 for the P0420). The ECM compares the waveform of the oxygen sensor which is located before the catalyst with the waveform of the oxygen sensor located after the catalyst. This is to determine whether the catalyst performance has deteriorated.Labor: 1.0. To diagnose the C1201 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.I hooked my scanner and soon enough I was slapped in the face with the holy trinity P0440 (EVAP Malfunction ), P0442 (Large Leak Detected), P0446 (EVAP vent Malfunction), and to top it all off I also got the Holy Matrimony P0171 (Bank 1 too lean) and P0174 (Bank 2 too lean) I decided to tackle all the EVAP codes first and leave P0171 and P0174 ... Has no power when floored biggs out and down bad. OBD2 brings these codes up, P1656, P0440, P0420, P0161 and P0300. Any idea on what it could be for these codes to get my power back. It's a 2001 Lexus IS300 with like 217,000 miles. Possible causes of OBD code P0430 Lexus. A code P0430 Lexus may mean that one or more of the following has happened: The catalytic converter is no longer functioning properly An oxygen sensor is not reading (functioning) properly There is an exhaust leak.Access our free Firing Orders Repair Guide for Lexus RX 2000-06 through AutoZone Rewards. These diagrams include: Fig. 3.0L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system. Fig. 2.0L engine with DIS Firing order: 1-3-4-2 Distributorless ignition system. Fig. 2.4L (2AZ-FE) and 2.7L (3RZ-FE) engines with DIS Firing order: 1-3 …Lexus Models ; Lexus IS200 / Lexus IS300 Club ; Engine & Transmission ; P0420 + P0420P Fault Codes Catalyst Efficiency Below Threshhold (Bank ... p0420 and p0420p not sure what the p stands for at the end of the 2nd code. anyone have any ideas? anyone know the most common reason for this? i know its refering to the cat but there is …Lexus Mechanic: Ron Z., - Lexus Tech - replied 11 years ago The sensor is mounted to the EVAP Canister (shown in image above-click "view full image" to get a pop-up window with a close-up view), located under the vehicle, near the fuel tank.This article applies to the Lexus ES (2007-2014). Replacing the stock exhaust with an aftermarket system is relatively easy on your Lexus. The most difficult aspect of this job is getting the clearance under the vehicle if you do not have access to a lift. Removing and replacing the catalytic converter is a little bit harder and a bit more ....

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