rmodel65

run some seafoam thru the motor, remove the MAF sensor and clean it, aslo check your TPS setting if its off slot the holes with a drill bit to make it adjustable and set it to .99

you need new plugs


also make sure to set your timing at at least 14 degrees advanced this will give you a bump in MPG,power the car will run smoother and the temps will lower

5.0stang123

Oh ok well the maf was also cleaned recently, I dont get the whole tps thing. Timing is at 12 i want to run 87 octane so I think 14 is to high.

rmodel65

i run 14 degrees and 87 :P

the tps tells your computer how far you are into the the throttle and what fuel table to use.

if your tps setting is off your out of wack all over, the tps has 2 holes normally they are just round but you can wallow the holes out with a drill bit to make it adjustable(so you can twist it to get into range)

89Mustangn00b

What's your cars idle? Also do you have a fuel/air ratio gauge? You may be running too rich, if so then that's a computer problem. Other than that only thing I can think of is the more you tromp on it the less gas mileage you get.

5.0stang123

Ya I do not have a fuel/air gauge. It idles at 700-750 and 1100 on cold. I was thinking it was running rich it does smell but It doesnt have cats so Its hard to tell. How can you fix running rich isnt that all controlled by the computer. Also I live in Canada and you cant buy seafoam here