Have flushed the engine and replaced anti freeze, replaced the temperature water sensor, replaced the alternator, fitted new batteries, bought chocolates for the wife but the dam thing keeps doing it. O 2 sensors are wear items and do not last forever. . But it might not be the sensor's fault. Any information on how to fix this would be greatly appreciated. It is a reach, but it was possible for me to do the job that way.
I have changed the Gas cap and this did not solve the problem. Another thing that was strange was back in September 2012 when I replaced the original coil, it had worked well for ten years or so! Or replace the catalytic converter? It generates the error codes or fault codes we talk about here. The evap system is usually the last system to reset. They had me sign a waiver that I was taking responsibility for the diagnosis. If the converter isn't working, you won't pass the test. I also left the code reader on it, so I could see when it failed. I hope that this is helpful to you!!! It looked like there was room to work in a small screwdriver back there to release the lock.
Oh, taking each apart to see the diaphragms is hard - they glued them together - that did not stop me of course. The needle will drop when you first open the throttle, but should then rise and stabilize. For the last two years the check engine light comes on with code 441 I don't worry about it till time to get inspection sticker here in Texas. Check engine light came on yesterday. But I was a little lazy back in September 2012, the old spark plug wires looked like they were still in great shape, so I left the old wires on. When I tested some hard acceleration, sure enough the check engine light came back on.
Applicability has been updated to include 2014? Toyota Part 77740-08042 which replaced 77740-08041 The new part number probably means that the old ones all had a problem. A sluggish or dead O2 sensor will make the computer think the exhaust is running lean, so the computer will try to compensate by making the fuel mixture rich. If this is the case then all you have to do is tighten the gas cap until 3 clicks are heard. Also, if you add a link to this page, other owners can share this too. He said it looked like there are some valves on the canister which are pressure or vacuum operated, rather than being powered, and they stick.
I changed the spark plugs, which didn't fix the issues. How I changed it out: I elected to remove the bolts to the bed on the drivers side and loosen the bolts on the passenger side allowing me to lift my bed and place a 4x4 block between the bed and frame mount to the rear of the wheel well. It turns out with my long skinny arms I can lay up over the motor and reach back around both sides of the intake manifold to reach the coil. It's a crew cab , 4x4. The buildup of backpressure will cause a drastic drop in engine performance and fuel economy, and may even cause the engine to stall after it starts if the blockage is severe. Samsung W200 pocket camcorder was used to do this video.
A bad oxygen sensor or coolant sensor may be giving the computer bogus information. Then changed the coil, which fixed it. No comments about the mileage, time, etc. My problem was one of those circle valves actually on the canister. P0440- Evaporative emissions system fault- just saying there's something wrong with the system. I went to Advanced Auto this morning and they checked the code. Without knowing what each valve did, some things are always the true of this kind of valve.
Background: Recently my truck popped the evap code p0440 indicating that there was a malfunction in the system. The check engine light came after five days it gone automatically, but when tank near empty check light came back and after it clear by scanning code by scanner, but after few days it came back code is 0420. If you suspect that the check valve is allowing exhaust to flow backwards, remove it and blow through both ends. These are the most common types of fault codes have encountered with the Camry, along with their remedies. I feel he has dollar signs in his eyes. So they made it right for me - but only because I specifically asked about it.
If the P0420 code is combined with other codes, try fixing the other codes first. Question: what should I do? Fuel economy will significantly deteriorate. He swapped the canister, and the problem followed. Given that you have the incorrect purge flow code and the control valve code together, my bet is that the vent control valve has failed causing the P0446 and is not opening to allow fresh air into the system to displace the air from within the system that is being pulled to the engine. This allowed me to lay over the wheel and pry the valve up out of the tank without dropping the tank. A simple fix is a loose or bad fuel cap - as if I would ever get that lucky! Autozone diagnosis says it's either a coolant low level b sensor not working correctly c thermostat not working correctly. Remember you just want the bolts snug, do not over-tighten them.
Just the car is out of warranty and I'm out of luck. Everything was dirty, so I washed everything down. Little or no temperature change would indicate low efficiency, or a problem with the converter's air supply. I took my Sienna to the dealer and told them I was taking responsibility for the troubleshooting, since I did it for 31 years. If Tilted Tree had been there, it might have been okay.