Re: po443 & po453 keep repeating
P0443 is a purge valve ciruit code which means a problem with the electronics not necessarily just the valve itself (although the solenoid can be shorted). P0553 is tank pressure which will set if purge is commanded and the vent valve seals but no actual purge happens. (There are other causes but the p0443 narrows it down).
Since you've replaced the purge valve the problem is somewhere in the connector, wiring, fuse, ground controlling the purge valve.
Since it was a motor swap the chances of a broken or shorted wire are most likely. (No one is perfect and its very easy to nic a wire)
Last edited by Dirtman; 03-11-2019 at 09:04 AM.
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