I have a 1996 GT 5-speed. Bought it a few months ago as a project car, now im trying to work out the kinks. When I start the car it has a funny idle to it. It will start to about 1300 RPM and stay there for a few minutes, i know that they do that sometimes to warm the engine up when its cold outside, but it does it when its hot outside too. When it idles down (which takes about 4 minutes to come down from 1300 RPM) it'll idle up and down between about 700 and 900 RPM its pretty suttle, not violent, but still very noticeable. Now no matter if i'm just driving normaly down the street, or getting on the freeway, as i shift through all gears it chuggs as i accelerate. Even when i'm just at a steady 60 MPH in 5th gear it'll give me some slight chuggs. I took it to get the Check Engine light read and it came up with misfire on cylinder 4 and something about incorrect fuel pressure. I changed all my 02 sensors, and put in all new motorcraft OEM spark plugs, it still is doing the same thing though and I cant figure out why.
The car has 130,000 miles
My only mods are:
K&N cold air intake,
Flowmaster 44's cat back,
and a PI Intake manifold.
any help would be great
The car has 130,000 miles
My only mods are:
K&N cold air intake,
Flowmaster 44's cat back,
and a PI Intake manifold.
any help would be great