Q&A

I am curious to know where you are living? If there is no Toyota dealer near you presently a Lexus dealer will certainly have the knowledge to "pull codes" and repair your car. A Check Engine light indicates an emission system failure that may be caused by a failed spark plug, failed ignition coil and items that will noticeably effect the way your car drives. Failure of other emission items may not have any noticeable effect on driveability. A flashing Check Engine light is a serious concern and indicates the car should not be driven, it indicates a more serious problem. I would suggest first ensure you are only using unleaded gas (leaded gas will damage the catalytic converter and air fuel ratio sensor), secondly I would buy a workshop manual and cheaper scan tool that can read OBD2 codes. There is a 16 pin socket that is common to every car manufacturer sold since around 1997, that allows you to access a lot of information. The connector is under the driver's side of the dash. It displays the cause of the check engine light illumination as a code for example P0420, or P1442, you then loo at a chart and see what that code represents. The best value scan tool for your use is probably the Equus 3100. I just saw one on EBAY
http://www.amazon.com/s?ie=UTF8&search-alias=automoti....
If you had a scan tool a workshop manual and some basic tools you should be able to travel anywhere in the world.

Yes any lexus dealer would be able to fix your problem , however it might be quite costly. If you are getting a code p2195 , yes that does mean the oxygen sensor for bank 1 is reading lean .. That does not mean that the sensor itself is bad . You may have a vacumn leak somewhere causing false air entering the engine. also a dirty mass air flow sensor will create the same results.

toyota's usually have 4 O2 sensors. 2 in front and 2 in back. if you do not replace them when they go bad it can ruin your cat converter. of teh 4 sensors 2 are called fuel/air ratrio sensors and cost more than a regular O2 sensor. you need to find a shop or go back to the Lexus dealer and ask them to fix this. Lexus should be able to fix a toyota. if your car is less than 36months old it should be under warranty still

if your check engine light is on solid that means your vehicle has a problem with emission system or drivetrain (engine and transmission). if check engine light starts to flash that means you have a severe misfire and is causing major damage to your catalytic converter/converters and should not drive the vehicle at all, for example bad spark plugs, ignition wires, distributor cap, distributor rotor, ignition coil, fuel injecters, burnt cylinder valves, valves adjusted to tight.etc. i have experienced all of these problems in my experience. In your case the light is on (not flashing) which means you can drive your vehicle to a shop and get it diagnosed by a pro. You can buy an obd2 scan tool and pull the codes yourself but alot of times just because you have a code for a sensor does not mean the sensor is bad. So you could be spending your money on something that you should not.

bank 1 is befor catalytic converter and when you open the hood front of the angine thar are egzost manifolt thar are o2 sensor btwen fan attach to agzost manifolt and some head shield around egzost manifolt that shield has 3 bold 10 mm sokket it well work un plug the wire on sensor use a 22 mm to lose sensor but before you do any thing use lubricant like dw40 if sensor dosent come lose lat egzost manifolt warm up after you take it of do evrythin bake worts... good luck

Anytime your check engine light comes on, there are two easy things that you can do before consulting a mechanic.
1) Tighten the gas cap. If the light remains on, go to the next step. Remove the gas cap, and inspect the o-ring. If it is dirty, wipe it and the gas tank sealing surface with a rag soaked in solvent (acetone /nail polish remover works great, but keep it away from painted surfaces!). If the o-ring is torn or deformed, buy a new gas cap. Be sure the gas cap in on tight and sealing the fuel tank. A leaky cap will activate the light.
2) Replace or vacuum the air filter. Even if the maintenance schedule says your air filter change is not due yet, if you just drove through a dust storm, it's due now! In some cases, only cleaning is required, I've seen otherwise OK air filters just clogged with dead leaves. In this case just vacuum and reinstall. A clogged air filter will activate the light. In most late model cars, no tools are required to change the air filter, it is just four hinged spring clips, and is so easy a child can do it. If it turns out the air filter isn't your problem, just put the old one back in and save the new one you've bought, you're going to need it someday.
These two problems are the cause of as much as 50% of all illuminated check engine lights.

I have a 1999 Infiniti. Check engine light came on. I have had several computer checks. All say "Catalytic converters need replaceing". I have had them replaced, had a tune up, and the light still is on. No dealer nor garage in this area can tell for sure what to do. Can you advise me what to do next?

do you use a Toyota scan tool to do DIY work? I have a Toyota Carola, and the airbag light goes on one month ago, then I am recommended to buy online a MINI VCI from uobd2.com, I am here give you a link for your reference. I think it's ok for me.http://www.uobd2.com/wholesale/mini-vci-for-toyota-tis...