My engine is sputtering when quickly accelerate. I changed my oil and filter and fuel filter. I cleaned my MAF and my throttle body. I used gunk out 2 weeks ago and can't figure out why it's not running right when I floor it. Can anyone shed some light on this problem ? I think it has something to do with some part of the fuel system. Fuel pump driver module (FPDM) ? One of the cats ? I changed one about a year ago because I heard rattling.

 

Usually if its a clogged cat, you would have issue on more than just accelerating. I would check your FPDM for corrosion, and change your fuel filter if you haven't. How old are your coil packs and boots? You could always try some fuel injector cleaner too.

 

I just replaced the COPs Saturday and used gunk out 3 weeks ago

 

I changed the COPs because I had a misfire but now it's gone. Now it won't giddie-up and go when I floor it

 

I cleaned everything possible like the throttle body, MAF and I put a new fuel filter last week but I was thinking maybe I should take it off and see if it might be clogged up

 

Ok if the misfire is gone but it doesn't take off when indoor it, it's gotta be something having to do with fuel, correct me if I'm wrong. The only thing I don't look at was the FDCM

 

Looks like your next step is checking your FPDM. What brand COP's did you buy? Some aftermarket brands don't work so well.

 

x2 I used MC COPs because of all the horror stories I read about other aftermarket COPs.

 

Orion motor teck COPs

 

Those could be your problem. The cheaper COPs tend not to have the output of the OEMs.