Re: check engine light
-Clean the MAF sensor
-Seafoam the upper intake manifold
-Accidentally pulled out my pcv valve last week and got the same code.
-Check for tiny vacuum leaks around EGR & vicinity.
These suggestions have eliminated the same code for me once or twice over the last 5 years or so. Might be the culprit, might not. Just hope that it might help you out. Good luck.
'97 3.8L V6
1996 SVT Cobra White