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Erratic idle randomly, Code P0440 900

posted by  torrec57 on  Sat May 19 04:16 CST 2007
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last visit: Mon Jun 10 09:26 CST 2013
[RELATED]

This problem has been going on for a while, the engine acts up for a few seconds and then it will act normal for a while. I've replaced the Oxygen sensors, power packs, and air mass sensor with no luck. This problem usually occurs more often when I fill up the tank. I finally got a P0440 code Evaporative Emission Con. Sys. Malfunction. I then disconnected the Purge Control Valve and after I filled up the gas tank, and a bit of driving around town, there were no more problems. I got the code P0443 telling me the valve is not working; because I was troublshooting and disconnected it.

1996 964 178K

Any ideas?

Thanks


--
1996 964 178K, 2000 S70 63K






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