12secss e.mack Posted April 21, 2015 Report Share Posted April 21, 2015 throwing code po443 evaporative emission control system purge control value circuit malfunction ....HOW DO I FIX IT Quote Link to comment Share on other sites More sharing options...
synyster_SS Posted April 22, 2015 Report Share Posted April 22, 2015 Looking at the diagnostic chart for that code on GM service information (I'm a tech at a GM dealership), the long and the short of it is, it's either your PCM or the EVAP purge solenoid at fault (that is, if the wiring and connections are all good). I'm not a fan of throwing parts at cars to fix them instead of doing proper diagnosis, but purge solenoids are pretty inexpensive so it won't hurt to just put one on there. Quote Link to comment Share on other sites More sharing options...
GI.SS Posted April 23, 2015 Report Share Posted April 23, 2015 delete that evap crap Quote Link to comment Share on other sites More sharing options...
bigreds10 Posted April 26, 2015 Report Share Posted April 26, 2015 Buy a new one at dealership, run a new filter... mine got clogged from the dirt... fixed my issue when I had that code Quote Link to comment Share on other sites More sharing options...
12secss e.mack Posted April 27, 2015 Author Report Share Posted April 27, 2015 thanks ,guys FIXED. Quote Link to comment Share on other sites More sharing options...
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