Missing issue only when I get on it.

irishkael · Apr 24, 2016

Ok so i was on my home yesterday and I went to get on it and the car just starts spitting and spuddering like crazy. I left off and ease back into it and it's fine. It only seems to do it real bad if I put a load on the engine. When it's idles sometimes it misses and other times it's fine. No check engine lights for anything other than the o2 sensor that I already knew needed changed. Plugs were changed right before I got the car. I changed the coil packs. Could this be a plug wire issue or could this be something else?

07GtS197 · Apr 24, 2016

It sounds to me like maf but it could also be from that o2 sensor being slow to compensate for the added air when stepping on it suddenly. Either way clean the maf while youre replacing the o2 sensor since its never been done.

96blak54 · Apr 24, 2016

^ this guy said

irishkael · Apr 27, 2016

So I cleaned the maf today and still doing the same thing. But I have noticed that it seems to be above 2500 rpms and above half throttle. But it doesn't do it when I'm at a stop and rev it up. I've been told to that it could be the fuel pump and filter. Could the pump going out cause it to only miss when it's needing fuel?

DropTopPony · Apr 27, 2016

My fuel filter was getting old and I had these symptoms.

96blak54 · Apr 27, 2016

Good deal! Youre narrowing down potential problems! Do the fuel filter next. If you notice the filter and its all rusty decrepit. ....most likely its the problem. Probably never been changed. Keep us tuned in!!!

By chance do you have any pictures of the car? Post them up man. We all love mustangs, good or bad!

irishkael · Apr 28, 2016

I posted it when I did my intro but here it is again. I have a bunch more but I'm not gonna crowd up the thread on missing with random pics. lol

DropTopPony · Apr 28, 2016

Love the purple

96blak54 · Apr 29, 2016

I remember now. Sweet ride! My buddy has a purple. Calls himself plumod96

irishkael · Apr 30, 2016

So I changed the plugs with fresh plugs and got that old fuel filter out and sure enough the missing stopped. I'm almost certain that it was the fuel filter. Gas was rust colored when I dumped it. Thanks guys. Now on to my pi intake swap.