I had a misfire but recently fixed it by replacing the coilpacks but now when I floor it, it has a sputtering hesitation. I've cleaned the MAF, throttle body, changed a dry rotted vacuum hose and disconnected the negative on the battery this morning for about 30 minutes. Could it be the fuel pump control module or maybe one of cats ? I changed one cat close to 1 year ago ?

 

Did you reset the computor for the new coil pacs , I have found that makes a differance . Also did you replace the plugs also ?????

 

The plugs were replaced only 2.5 years ago. Even my mechanic said they should be fine

 

I unplugged the negative off the Battery for 30 minutes this morning

 

Check the condition of your FPDM located on the frame under your spare tire.

 

Could thy keep me from taking off when I floor it because I have done a complete time up besides the FDCM ?