hi guys,
for the past couple of days ive had strange symptoms for my car (skyline r34 25gt coupe non turbo).
when i start the car in the morning the engine vibrates. then the engine light comes on to. it also miss fires. (sometimes sounds like a Subaru)
but when i turn the car on when the engines warm, it doesnt vibrate nor does the engine light come on and the car runs fine.
please advice me on what the problem might be!