Like twice or even once a month. After replacing the cap, I went back to Autozone and had them clear the code. To move from one letter module to the next, you push the odometer reset button one time. What are the symptoms of code P0444? After a recent repair to replace the Thermostat which cleared the P0128 code , I got a p0444 code. To do this, attach the vacuum pump securely to one opening of the valve, and draw a vacuum that registers on the gauge. What are the common causes of code P0444? So I filled up again and drove for about 10 more days with no code!!.
Some models require multiple failure cycles for service engine soon lamp illumination but a code is normally stored on the first failure. Meanwhile, I'll look around a bit more and check the Bentley manual to see what else I can find. So I am still not 100% on this or at least I cannot explain the inconsistent behavior but let's say gas cap fixed it and the code won't be coming back again. They give you the codes for everything, so you don't have to have any real diagnosing skill to tackle a given problem. The purge valve solenoid is supplied switched battery voltage.
Remove the smaller thinner hose coming from engine twist and pull might take a while 7. So did you actually replace the purge valves? I dont know that thats the problem but its about the only thing I could think of. Took a little under 2 hours. You must find it and repair it. Short circuits can destroy the battery as well as the purge valve, in addition to causing serious burns when the test wires overheat.
I will follow up with results. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage. For peace of mind, I stopped by a, somewhat, trusted mechanic and asked him to verify the error. Push the odometer reset button again to view additional codes if they exist. I have a 2004 325i with 54K on it.
It's been almost 3 months since then and I am still waiting. If the vehicle is turned on, the technician may be able to pinpoint a potential leak in the vacuum by simply listening to the abnormal suction sound of the vacuum lines. This may relate to a malfunction or disconnection with one of the system's components, including but not limited to the system pressure and flow sensors, electrical wiring, the fuel tank and lines, or the gas cap. Spark plugs typically need to be replaced every season or 25 hours of use. One is the famous P0174 and other is the one you got P0444. Probably similar process once you get to the purge valve though. Be aware that intermittent faults can be extremely challenging and time consuming to find and repair, and in some cases, it may be necessary to allow the fault to worsen before an accurate and definitive repair can be made.
I really do not think it is my gas cap. I fill about 3 to 4 times a month. I did some research and it seems a new gas cap will probably not solve the problem. The service engine soon light went on unexpectedly so I took it to Autozone and they read the code as P0444. So I drive it but I constantly monitor it. My check engine light came on a few weeks ago; I scanned the code and it was P0444.
Smolck, would the purge valve be the next thing you would look at, if this happened to you? Bear in mind that if multiple codes are present, they must be diagnosed and resolved in the order in which they were stored. If a reading is given that does not line up with the manufacturer's parameters, the vehicle's computer will log the issue. Another thread had reference to this, but no one was exactly sure which one the purge valve was on the diagram that was posted. I cleared the code and after about a week later, it came back again. But if solenoid doesn't open, bingo!. The purge control valve circuit is stuck open and most likely needs to be replaced.
You already read my P0444 adventure above I guess so I will not say much about it except that I changed the fuel cap but it didn't do it. A passing system always reports to the diagnostic executive immediately. So what would be the course of action here other than the gas cap? It's not terribly difficult to replace, it consists of an electrical connector and a hose. I really would doubt it's my gas cap- so I'm going to skip that part for now even if there is an off chance of me regretting it. I tried cleaning and refitting the gas cap a couple of times, and at first, I thought it worked, but the light kept coming back. And it is not exhibiting any drivibility problem.
Need help with a P0444 code? Its attached to the engine. Fuel Moto does not offer technical support for diagnostic trouble codes. Well, a week later the darn light came on again! This time the code never came back. Stored codes presented without malfunction indicator lamp illumination may be read as pending codes. If the code is current it will reappear. Can keep it alive with intake cleaner hooked up to vacuum port on plenum, and revving. He claims he has seen this before and swore it was due to a faulty gas cap.
I'm still get the P0444. So I went to the stealership and bought a new one. Should I give it a shot and buy a new cap? I will find and replace this rogue valve! Keep a close watch on the vacuum gauge- if the vacuum decays the valve is defective, and it must be replaced. You will need to remove the airbox assembly and it should give you all the clearance you need. Note the location of the purge valve in relation to other major components of the system. If the wiring checks ok, then I am into lot bigger problem and will require professional help. You must find it and repair it.