Huge misfire, Help please. Misfire issues Options

[krmendez8]

ive got a 94 gt
I got a misfire when I idle at 2k to 3k rpms. Ive changed spark plugs, wires, cap and rotor and distributer coil. Im stuck on this. Im wasting so much gas.. getting like 20mpg. any ideas?

thanks in advance

[Nartanian]

What cylinders misfire? I say do a compression test. You might be misfiring due to low compression.

[mgnt232]

are you burning up any oil (i assume coolant could do it as well) When I had my old 7a I replaced all this stuff, but i did a test (cylinder leakage test? idr now) and found that the piston ring in cylinder one was bad, and so much oil (i burned a quart a day minimum) was getting in the combustion that it wasnt actually firing, and causing it to misfire. Just an idea to rule out

[chinamandrift]

need more info ...first off Idle at 2k to 3k .....techinically thats not idling ...unless its at 2-3k without you touching the pedal

most people interpret a missfire as many different things

can you explain more in depth how you can recreate this missfire ?

your speed mph ? are you on the throttle 100% ? has the car have recent work ? when did this start happening ? during this missfire what kinda noise do you hear ?does the rpm stumble? was this car non operative for a long time? any smoke during missfire? any smoke at start? strange smells ? does it happen as your moving the throttle ? is your engine covered in oil dirt or grime heavily anwhere?