Re: 2000 Crown Vic - Hesitation
With those codes, it could be the cat partially plugged. To check to see if the MAF is faulty, unplug it and run the car. If it runs better, the MAF is dirty or defective. To check the cats, check the engine vacuum at idle and the accelerate to about 2000 RPM. The vacuum should drop and then return to almost the same as it was at idle. If not, there could be a restriction in the exhaust.