90Lxstanger

I have few question about this. First my car is a 90 lx hatchback 5.0, and I just thought that the MAF started in 88? maybe all he cars werent MAF yet, i dont know. And second, is a speed density system supposed to have any screens in the cold air tube like a MAF setup?

88blackgt

your car should be a maf car. maf started in 89 for all cars, 88 for cali models.

90Lxstanger

hmmmm, i know the previous owner put a Mac CAI on it, and it dont have(or didnt get put on) the sensor on it and i thought that was weird anyhow. I couldnt really find the wiring harness for it either. If it was a MAF before, is it hurting it any now without it?

88blackgt

you would have to make several changes to convert it from maf to sd. do you have a pic of your engine bay?

90Lxstanger

no i dont not yet, ill get one in a few days

88blackgt

just wanted to see, because i doubt he converted it back to SD. do you have a little black box sitting on top of your intake, before the tb?

90Lxstanger

No theres not a sensor at all,which i noticed when i bought the car, didnt think much of it. Its a Mac CAI kit,with a two piece tube, and it should be right between the 2 tubes where they connect, but its not. I agree with you, i dont know who would change a MAF to SD, but hard telling.

Mowin8603

uhh hows the car run??

88blackgt

look at the computer, its behind the kick panel. not sure what the codes are for the sd computers, but check fordfuelinjection.com, they have a huge list of the all the #s on the computer itself and what they refer to

90Lxstanger

the car doesnt run too bad, not until lately with the cold weather, its been a lil rough at idle and didnt feel as smooth, and now im wandering why that is, would the filter ben frozen or something? Im gonna try and drive her tom. if the weather aint bad, and check the computer, its the right panel right?
thanks