I have a '97 Ford Ranger whose check engine light came on
a few days ago. I have a diagnostic code reader so I was able to turn the check engine light off but it came back on after a day or so indicating there is a prob. I read code "PO443" which points to a "evaporative emission control sytem purge control circuit malfunction". I looked at the emissions lable on the truck and it shows 1. the evap. canister 2. a purge solenoid 3. a thermistor all leading into intake manifold. On the other side of the intake manifold and on a separate hose line is the pcv valve. Before I start playing, "guess again", which part would anyone be willing to bet could be faulty thus setting this code? I also don't think the hose lines or anything is leaking.
Thank You. :)