Engine Sputter

[Etienne]

I had posted this question in a reply to another post, and as I am updating the information I figured I'd just start a new thread.

My car is having sort of sputtering problem. sometimes it seems that it is missfiring, and others that it isn't getting enough fuel or air. I replaced the fuel filter, the mass air boot and the air filter (K&N filter on the "fogged" airbox)

Anyway, when I accelerate up a hill or really hard, the car sputters when it gets into 4500 rpm or so in second or third gear. It is a little inconsistent though, and sometimes will accelerate no problem, other times it gets so bad that every time I start moving I get sputter.

Any ideas?

There is a little hose comming off of my Mass Air Flow Boot that seems to go to some sensor or something... it is the only part of the intake system I haven't replaced (mainly because getting to it looks like its gonn be pretty tough to get out. I am also not 100% sure what this hose/sensor is (breather hose...?)


Thanks Much!

SJM

[jeph23]

You know, I was kind of having the same problem, so I talked to one of my mechanic friends. Another problem that I was having with it was the big change in my gas mileage. I was getting about 40 miles a tank less then before. So, I talked to my friend and he said that I probably had a spark plug that the gap was too wide on I was probably getting blow by. Easy fix. Change the spark plugs. I did just that and it solved the problem. It runs fine again and my gas mileage is back to normal. Hope this helps!

[RAiMA]

Originally Posted by jeph23

You know, I was kind of having the same problem, so I talked to one of my mechanic friends. Another problem that I was having with it was the big change in my gas mileage. I was getting about 40 miles a tank less then before. So, I talked to my friend and he said that I probably had a spark plug that the gap was too wide on I was probably getting blow by. Easy fix. Change the spark plugs. I did just that and it solved the problem. It runs fine again and my gas mileage is back to normal. Hope this helps!

Diam, you beat me to it Was about to suggest the same with the spark plugs. This also happened to me.