We can however rule out wiring and that is a big hurdle to be able to rule out. There may be no drivability problems at all. Well you did put on a used solenoid, could be that it is no good. After you instruct it to perform the scan, it speaks with your car's computers to find out exactly what's prompting the light to turn on. Mike, First off let me say Thank You, I really appreciate your help. . Or the tensioner became loose as well due to age.
If it doesn't click when you manually ground it, replace the purge solenoid. Maybe I'll just have to mangle the plastic cover to get it off. Usually they are a unit housing the valve and the solenoid as an assembly. Since you replaced the purge solenoid, there may be a problem in the circuit. That wire goes directly from the valve to the Powertrain Control Module.
A P0442 small leak is usually caused by a crack in the vacuum hose somewhere in the system. Thank you for using FixYa, have a nice day. I use a test lamp on these type of circuits because it is possible to have enough voltage but have a poor connection that sucks the necessary amperage to drive the circuit. You must find it and repair it. But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open. The evaporative emission control system checks to make sure there are no leaks in the lines that run from the gas tank to the charcoal canister and up to the engine. So the engine is literally sucking out the gas vapors and purging the canister with fresh air.
Listen or feel for a clicking coming from the purge solenoid. When you fill your car with gas, the vapors in the tank get forced into a canister filled with activated charcoal. Feb 23, 2012 Hi, 443 is not a leak--it a purge valve malfunction. But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open. Your light may not go right off so give it a couple of drives before you go any further. Using a scan tool, command the purge solenoid to activate. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve.
That opens the vacuum line between the canister and the intake manifold. I'll check the power on the pink wire to the valve as you recommended and let you know. If it does, then you know the solenoid is working properly but there is a problem with the control circuit. The dark green and white wire is the ground side. I hesitate to tell you to replace the pcm, that is an expensive guess without the right tools to diagnose. The information contained on this site is presented for informational purposes only. Good luck, and if you are not already familliar with those tests don't try them.
As I stated earlier if the positive circuit is ok and the valve is ok then you should probably take it to someone that has the proper equipment and know how. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. If you have battery voltage, then ground the control side manually using a jumper wire and see if the valve clicks. What the heck is going???!!! You can really dammage electronic components if you do the tests wrong. There may be no drivability problems at all.
If it doesn't click with scan tool activation, unplug the connector and examing the solenoid and connector for damage, water, etc. Good luck, and if you are not already familliar with those tests don't try them. But, what could I say, right? It should click once, or on some models it may click repeatedly. It's alot easier to take it to someone with a tech-2 that can activate the system and check system operation but if you want to go the diy route then you have a good handle on what to do. Listen or feel for a clicking coming from the purge solenoid.
The belt isn't broken and it seems on place I didn't disassembly completly the engine yet. It is recommended to have this code fixed to prevent further loss of fuel economy. Enter the 5 character trouble codes in the search box and submit the search. What that bolt goes into is a brass nut that is pressed into plastic. I'll check the power on the pink wire to the valve as you recommended and let you know. But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open.