purge valve eng light ,i got a 3l sidi 6 months ago the purge valve causes lots of issues ,the engine light ruff idle at start not changing gears properly , running like a pig ,the sidi engine is a finely tuned motor so for$57 change it, the erro p codes appear on the scan tool get them on ebay $54 WORTH IT after changing the valve a p0443 generic permanent codes show up and goes away after a long drive note the valve does not open until the engine drops in revs after starting then the ecu does the work , disconnect the neg side of the battery after changing for 1 hour ,kill all the bugs in computer , then take it out the road and flog it [no speeding] this gets all the senors reading correctly , after that you will wonder why you didn't do it before the trans and motor perform like they should and they are a nice motor ,
the other thing you should do is the catch tank from the pvc valve after reading a few things on this yep do it build up on carbon on the inlet valves cause bad airflow $30 ebay , both things are easy to do ,
change your oil every 10,000 oil is cheap timming chains are not [2k to 3k ], saw a interesting youtube about this and it get back to oil changes ,oil build up blocking the oil galleries on the drivers side pvc valve to the chains ? and use a good oil
good luck
located drivers side under the engine cover in the black intake manifold 10mm bolt
mark 7888,
1 minute ago Edit Report