Repairing 2001 toyota sienna check engine light code p0420. P0430 toyota catalyst system efficiency below threshold bank. From warranties on toyota replacement parts to details on features, toyota owners manuals help you find everything you need to know about your vehicle, all in one place. It replaced a olds silhouette which was at 310,000km. So my wife was just blessed with a 2000 sienna and its absolutely beautiful and we love it.
Page 1 00 siennau section operation of instruments and controls overview of instruments and controls instrument panel overview. I have evap leak codes p0442, p0446, and cat inefficiency code p0420. A few days ago i changed the bank 1 catalytic converter. Is it possible to get a new ecm myself and replace the defective one myself. I replaced the gas cap twice and that didnt clear the leak codes. Learn what does p0300 toyota random cylinder misfire condition means, location and how to repair. Eg04705 article beginning introduction under certain driving conditions, some 2001 2003 model year sienna vehicles may exhibit a m. I just scanned my 2000 toyota sienna and it came up with two stored codes. P0420 catalytic converter system, bank 1 efficiency below threshold. From its first production, sienna has undergone many changes to its dimensions and designs to be able to compete in the market. The following toyota factory bulletin refers to codes p0171 and p0174, lean conditions on either or both banks, but this raises cause for concern when diagnosing catalytic converter codes as well.
Toyota sienna 2000 service and repair manual by kristel. This bulletin is acknowledging there may be a problem with the intake air control valves on 2004 camry, sienna and. The check engine light appeared after a short trip about an hour after the 750 mile trip ended it was also snowing pretty heavily by that point, if that matters. Toyota sienna first produced in 1997, the toyota sienna is a family minivan. Diagnostic trouble code chart toyota tacoma pickup truck. My 2002 sienna is giving a p0420 code, which means the. Toyota catalytic converter fix, 02 sensors, p0420 and p0430 please. P0420 catalyst system efficiency below threshold bank 1 the engine control. P0420 code and o2 sensor replacement question toyota. This webpage contains 2000 toyota sienna owners manual pdf used by toyota garages, auto repair shops, toyota dealerships and home mechanics. With this toyota sienna workshop manual, you can perform every job that could be done by toyota garages and mechanics from.
The exhaust systemcatalytic converters are different for california and federal cars. The function of the catalytic converter is to break down harmful pollutants that are created by your toyota during the combustion cycle and convert them into harmless gases. Towed to toyota dealer they drove it around for a week. P0770 shift solenoid e malfunction 2002 toy 4runner, will crank and idle,but when you put it in d or r it will go dead. I have the 1mzfe v6 in my 2003 sienna, and it has the precats that were mentioned. We came to know that the van had a long history regarding that code. Hey all, i know the topic of code p0420 and catalytic convertor replacement has been covered a lot here, but i wasnt able to find the exact answer im looking for, hoping someone can help.
Had p0420 on obdii, replaced cat converter, rear o2 sensor. Refer to tis, 2001 2003 model year sienna repair manual. Below you will find free pdf files for select years of your toyota sienna automobile. And within 20 days its showing the check engine sign. Technical service bulletin 2001 2003 toyota sienna van. The sensor is much cheaper than the catalytic converter, almost certainly needs replacement based on age, and is more likely to clear the p0420 code for a longer time. Leaded fuel in an unleaded system will nearly always trigger this, given the differing properties of leaded fuel combustion and exhaust. P0420 toyota catalyst system efficiency below threshold. Start by checking for intake leaks, intake gaskets are. Dtc p0420 catalyst system efficiency below threshold bank 1 dtc p0430 catalyst system efficiency below threshold bank 2 monitor description the ecm. My 2002 sienna is giving a p0420 code, which means the catalytic converter is performing out of spec.
Original toyota factory repair manuals, written for toyota service technicians and dealer shop mechanics. Used 2000 toyota sienna for sale with photos cargurus. Detailed features and specs for the used 2000 toyota sienna including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. The measurement is supposed be 1116 ohms at 68 deg f in reference to the toyota service manual. This repair is covered under the toyota federal emissions. Toyota owner manuals and warranty information are the keys to quality maintenance for your vehicle. Search from 18 toyota sienna cars for sale, including a used 2000 toyota sienna, a used 2000 toyota sienna ce, and a used 2000 toyota sienna le. Compare the displayed output signals from the sensors with the values stated in the manual as a double check to ensure that the sensors are not contributing to code p0420. My 2005 sienna intermittently sets off the p0420 code.
Check resistance on the control circuit against your manuals specifications. Recently the engine started throwing the check engine light that corresponds to p 0420. I have a 2001 toyota sienna with 206,000 miles on it. Chilton total car care series offers doityourselfers of all levels total maintenance, service and repair information in an easytouse format. Toyota service manuals original shop books factory. P0420 code toyota answered by a verified toyota mechanic. This video will give you some tips to try for clearing diagnostic codes p0420 and p0430 before you spend a huge amount of money. The auto repair labor rates vary widely across the country, and even within the same city. Acces pdf toyota sienna 2002 manual toyota sienna 2002 manual. P0420 toyota tech notes as the code description implies the p0420 code means that the vehicles control module has detected that the threeway catalytic converter is not working properly is not as efficient as the factory is expecting. I also got a p0420 on a 2001 sienna after driving 750 miles in one day into increasing colder temperatures ending in single digits. Explore toyota parts online and shop an authorized dealer for all the spare 2000 toyota sienna parts and accessories you need. I had check engine light on and oil consumption, code p0440 i replaced vacum selenoid part.
Technical service bulletin toyota camry solara sienna 3. Reading suggests this is triggered by the upstream oxygen sensor bank 1 output being too similar to the downstream sensor output. Toyota sienna catalytic converter replacement cost estimate. Apr 15, 2012 when we bought our 2001 toyota sienna in 2011 the check engine light was off. I then took it to the dealer for diagnosis and they told me it was the. P0300 toyota tech notes the p0300 code means that a cylinders is misfiring or is randomly misfiring. Assuming the wires are ok, is it safe to assume that the bank 1 upstream oxygen sensor is malfunctioning. The toyota appears to be in premium condition in and out, but about km into driving it we had cat engine light issues. Jul 29, 2016 p0420 install nonfouler pass smog toyota corolla matrixv fix it angel. View and download toyota sienna 2000 operating manual online.
Oct 11, 2008 i also got a p0420 on a 2001 sienna after driving 750 miles in one day into increasing colder temperatures ending in single digits. The proposed repair costs were about equal to the value of the van. Get detailed information on the 2000 toyota sienna including specifications and data that includes dimensions, engine specs, warranty, standard features, options, and more. View online or download toyota sienna 2000 operating manual. Hello everyone, i recently purchased a 2000 echo that needs some work.
Toyota catalytic converter fix, 02 sensors, p0420 and. For details of each dtc, refer to the page indicated. The front what many people call an oxygen sensor is actually an air fuel ratio sensor and all though looks similar in construction is different in operation. Check resistance on the control circuit against your manual s specifications. I guess the dealer had reset the computer before we did the test drive. Mar 22, 20 toyota sienna 2000 service and repair manual. P0446 code toyota toyota parts online olathe toyota. The misfires didnt return but after i cleared the p0420 code it. I say it could be the ecm, this is the tech bulliten on it.
Search over 14,500 listings to find the best local deals. Click download to get the full free document, or view any other sienna pdf totally free. A three way catalyst converter manifold with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. Learn what does p0420 toyota catalyst system efficiency below threshold bank 1 means, location and how to repair. Code p0420 indicates that the catalytic converter is not functioning efficiently, therefore. P0420 toyota description the engine control module monitors the switching frequency ratio of heated oxygen sensors 1 front o2 sensor and heated oxygen sensors 2 rear o2 sensor. Prior owner has been driving the car with both of these codes for over 8 years 2006 per service history. My registration expires on thursday and i need to pass emissions first. The next day the p0420 came back and this time toyota said i needed a new cat. I have a 1999 toyota sienna that we bought used 6 months back and we have hardly used it. But on the way home from the dealer the light came on. Apr 06, 2010 my 2002 sienna is giving a p0420 code, which means the catalytic converter is performing out of spec. As such, i was told the oxygen sensors might be going bad along with the catalytic converter and just about every thing else.
Three way catalytic converter bank 1 does not operate properly. Car 2000 toyota corolla obdii readings p0420 catalyst system efficiency below threshold bank 1 and p0441 evaporator emmision control system incorrect purge flow. P0420 code toyota toyota parts online olathe toyota. Ive had the van only a few months, and its got 150,000. The worst complaints are transmission, engine, and accessories exterior problems. Powertrain control modulepcm logic has been modified to improve this condition.
When i turned the car on and ran a scan the p0420 code along with 5 out of 6 cylinders showing a misfire. If you have access to a high temperature digital pyrometer or an oven thermometer will do, check the converters temperature fore and aft. I had it diagnosed by a toyota dealer and was informed that i needed a new ecm. Jul 02, 2017 code p0420 on my 2001sienna just dissapeared after i did this simple thing my obd2 doesnt display it anymore. P0420 toyota catalyst system efficiency below threshold bank. If any dtcs are displayed during a check mode dtc check, check the circuit for the dtcs listed in the table below. P0420 toyota catalyst system efficiency below threshold bank 1. Trouble code p0420 catalyst efficiency toyota nation forum. Applicable vehicles 2001 2003 model year sienna vehicles. On your sienna the sensor for bank 1 will be the one on the rear exhaust manifold. I guess thats why they say to bring used cars to a mechanic for inspection. Nov 14, 2012 p0420 code toyota answered by a verified toyota mechanic.
P0420 install nonfouler pass smog toyota corolla matrixv fix. Up to date, sienna is the only minivan in its kind that offers allwheeldrive. Mil flashes when a catalyst damaged misfire is detected. I also saw the sensor needed calibration, which i did. P0420 catalytic converter system, bank 1 efficiency. Factors such as instrument type may cause readings to differ slightly from stated values. Plus, customize the oem way with 2000 toyota sienna accessories. To fix this problem in your toyota, youll need to test the vent valve circuit from the ecm to the valve to ensure that its closing and receiving power when the key is on the engine does not have to be running. Toyota sienna service manual 2grfe engine control system sfi system diagnostic trouble code chart camshaft position sensor. P0420 catalyst system efficiency below threshold bank 1 the engine control module ecm sae term. We bought it at 178,000km and its now at 182,000km.
P0420 toyota sienna 2002 toyota sienna sliding door fix how to fix the drivers side. My understanding is that this is because the ecu thinks that one the catalytic converters is not as efficient as it should be. Genuine 2000 toyota sienna parts have been engineered to meet toyotas safety, reliability, and functionality standards. However, if the p0420 code is the only trouble code or if the other codes are all p042x codes the likelihood of a failed catalytic converter is much higher. In this video i replacing pcv valve and vacum selenod egr vacum switch valve on 2000 toyota sienna v6. Apr 14, 2007 i have a 2001 toyota sienna with 206,000 miles on it.
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