Just picked up a beautiful red 1997 from a young man who was tired of having it worked on and didnt truly know anything about it . He bought it, killed two pistons on the passenger side, and had the motor replaced with one from a low-mileage 1998. It doesnt run right and is popping the lean faults for both banks. Once i get it to the garage I will replace the fuel filter (car was parked while he deployed for six months), check the vacume (sp?) lines, and then check the fuel pressure. Hopefully that will give me the culprit or remove the problem.
What I really need is to gather info from those of you who are more knowlegeable about the 4.6s than I am. Should i be checking for any other problems from the 98 into 97 swap? Is ther any way to determine if the computer has been tweaked (has some other tasteful mods: baer brakes, diff cover, possibly gears and bbk longtubes) ? Could the "dangling" stock intake (no box) cause this condition? What other areas would cause the lean condition? If you have knowledge please educate me.
What I really need is to gather info from those of you who are more knowlegeable about the 4.6s than I am. Should i be checking for any other problems from the 98 into 97 swap? Is ther any way to determine if the computer has been tweaked (has some other tasteful mods: baer brakes, diff cover, possibly gears and bbk longtubes) ? Could the "dangling" stock intake (no box) cause this condition? What other areas would cause the lean condition? If you have knowledge please educate me.