I NEED HELP !!!!!!

[advance6559]

SO I HAVE A 2001 MUSTANG GT WITH MAC LT HEADERS, MAC OFF-ROAD H-PIPE, FLOWMASTER CAT-BACK, C&L UPPER PLENUM, C&L 85MM MAF, 75MM ACCUFAB THROTTLE BODY, AND A DIABLO PREDATOR TUNER. ANYWAY I KEEP GETTING A CHECK ENGINE LIGHT AND I READ THE CODE AND IT KEEPS GIVING ME MULTIPLE MISFIRE ON CYLINDERS 3,4,7 I CHECKED MY C.O.P AND THERE ALL GOOD SO WHAT NOW

 

[streetstang03]

when you checked the COP, did you actually pull the plugs??

 

[advance6559]

yes i have 2 different types of plugs

 

[blackfang]

2 different type? Elaborate.

 

[Dan_Soprano]

yes i have 2 different types of plugs

2 different types????!!!!!! WTF?? Get a fresh set and see what happens. Oh yeah, no need to type in all caps.........

 

[streetstang03]

yes i have 2 different types of plugs

i dont even want to know what idiot did that.

 

[Dan_Soprano]

i dont even want to know what idiot did that.

 

[Mike97gt]

2 different plugs.. wow.. well did you put new ones in yet?