hi everyone,

i have a fiesta rs1800 engine in my escort which is misfiring REALLY BADLY! i have changed the spark plugs and checked the air flow censor. when i floor it, she runs fine but will misfire almost all the time otherwise.

i looked at the leads and one of them is of a different type but i havent changed the leads since i bought it and it didnt have this problem previously.

does anyone know the spark plug gap on a bosch plug? i can only find the NGK reference and setting the gap to 0.75 has only made the problem worse.

one of the leads also likes to pop itself off at the distributer end but when its put back on, it doesnt help the misfiring much.

any help.....???

thanks for looking