Hi all,
I have a 1995 ford crown victoria police package. 4.6 V8. Over the last two months I noticed a drop in gas mileage. I used to get close to
20mpg and now I get 15. I don't know what is up. The check engine light has been on for about a year now. My car has OBDII (yes, some 1995 fords had OBDII before everyone started putting them in every vehicle in 1996) I received P0401 Exhaust Gas Recirculation Flow Insufficient Detected. After I changed the spark plugs last week I got this error also-- P0171 System Too Lean (Bank 1). unbolted the EGR valve and check for soot but didn't see anything significant. Any ideas? Am I missing something? I have carchip so I've been able to log everythinng in my OBD2 port and reset that engine light...Thanking you in advance
-J