Front oxygen sensor or air fuel ratio sensor Another very common Diagnostic trouble code for this Camry we see a lot is a P2238. Check the engine when it is running to listen for any whistling noise coming from the engine that is not usually present. Does anyone have any ideas as to what could be wrong I agree with the bad intake manifold gasket. Luckily I did not say what I was thinking!! I take it back to the dealership and get a full service for 105k. I learned that sometimes it's possible to overanalyze modern cars. Someone has some wiring diagrams for the 1zz engine check sublimewind's sig. If the problem persistss the front oxygen O2 sensor may need to be replaced.
Oh well hope it helps!! I am going to defer to your expertise, but I just want to ask if you've considered that lean-running engines. This code is triggered by the first downstream front O2 sensor. Much appreciated was that he got the parts to be covered by Toyota and I just had to pay for the labor only. The yellow arrow points to where the missing clamp was!! After turning off the engine with the key, there should be one last easy push of the brake pedal down to the flow. While this condition could be caused by a faulty mass air flow sensor, on these vehicles this is usually caused by a failed or weak fuel pump. To inspect the fuel filter follow this link, how to change a fuel filter. To know which is Bank 1 and Bank 2 in your car, you can look it up in the repair manual or google it, mentioning the year, make, model and engine size of your car.
When this problem first occured I was under 100k but am now at 104k. The master mechanic said that one of the other mechanics had my same car 97 Camry and he too had the exact same problem - hesitation in power, followed by check engine light, followed by lean condition codes. When testing the fuel pressure on this engine, the specifications are 44. If not you may need to find someone with a good scan tool to interpret the data stream. If that doesn't work anybody have any suggestions. Again, your mechanic can test it.
Of course this vacuum hose with the missing clamp is connected to the back side of the engine which is Bank1!! If it makes a hissing or wind sound when stepping on the brake. Does the brake booster hold vacuum? The updated part number for the right hand side exhaust manifold is. I have had other issues with Toyota's giving a unique code for a problem every other manufacturer identifies with a different code. If the problem persist the front oxygen O2 sensor may need to be replaced. How the code P0171 is diagnosed: With a good scan tool that shows the live data diagnosing the code P0171 is fairly easy. Sensor reacts normal to spike and active tests. If the sensing element fails it will not deliver the proper feedback information causing a lean mixture code.
Exept some rough idling where the computer adapts and drive slowly until everything is back to normal. I am glad that worked for you because it did not work for me. I am thinking now that this was not an entirely static problem! According to your first post you would be bank 1 or section 1. I went back to Toyota and talked to another parts guy and told him about the P0171 code and what I replaced. In case the amount of the compensation value is extremely large The actual mixture ratio is too lean. Even if it did go bad, I have not seen it flag a lean code. I just bought it in august.
Someone said they fixed the P0171 code by replacing the vacuum hoses to the canister under the battery. For this year vehicle U. The best place to take your car for diagnostics is your local dealer - their technicians are factory-trained and know the common problems with the cars they service. That helped and no light when driving around town for a couple for days, but the check engine light came back on when driving early on a cold morning on the highway. The bank refers the the left or right side of a v-type engine. Remember, this is only for bank 1, not bank 2. Parts stores don't manufacture parts like these, they buy them from the same suppliers that car companies do.
It turns out that the 97 Camrys have an old version computer that is related to the problem. To know exactly what caused the problem, your mechanic can do a few tests. Ford has issued a technical service bulletin on this issue. When this problem first occured I was under 100k but am now at 104k. So I will be having this fixed next week. Repair or replace failed components as needed and recheck the system. I would think that better mileage would mean better emission.
This might end up in the news at some point as a product recall due to defective design. Not sure where the Air Intake Boot is? Note: This is the same 2. Normal numbers at idle and high positive numbers under a load indicate a faulty mass air flow sensor. Most automotive components are made by companies and sold to car manufacturers or the after market. This balanced fuel to air ratio is 14. The problem came on one day when the temp was really cold out. I'll post up what they find and fix.
The Engine Control Module calculates the necessary compensation to correct the offset between the actual and the theoretical ratios. He asked another tech that I never got advice from before. If you have one injector that you suspect is bad or plugged up causing the engine to misfiring, you can swap that fuel injector with another fuel injector from a different cylinder to see if the misfire code or misfire condition moves along with the fuel injector. Could I have a bad fuel injector? If you find consensus to solve a problem that you are having on a few different websites, most likely it will work for you also. I would also venture to speculate that this problem involves other Toyota products other than Camry, that use this same subsystem for fuel delivery. Some parts are different, and some are dealer only. If you need struts or a tie rod, call autozone.
Take pictures, crawl under the car, look under the hood. I have seen them for a lot less nowadays. Check for voltage on the wires coming from the Engine Control Module. This system controls the air fuel mixture according to sensor feedback data. Or Is there any way to reset the computer? Replace any vacuums hoses that have failed, clear codes and recheck system.