Car misfiring again?

[lvmustanggt]

My gt have nothing but problem these days, last Friday I was coming home from work and did a some hard drive and now my car is miss firing . My exhaust tone is completely different and sounds like subaru sti exhaust.

When I park I can smell bad odor, is my cats of my upr x-pipe cloged or something else it wrong ?

Car got half the power it did , what should I do ? where should I look ?

Last time I had a bad bog problem and fiexed it after I change both front 02 sensor and all coil on plugs with accell.

Need help please, soon to be sold.
Just sick and tired of my gt

 

[kramer03gt]

Hey Dude, im actually having alot of the same problems with my 03,

http://forums.stangnet.com/751569-took-stang-shop-today.html

the above link may give you a few ideas theres been alot of good info in that thread since i started it..

 

[HOOCBB]

cats could be clogged...

I've heard nothing but bad things about the Accel COPs...pull codes and try to narrow it down to specific cylinders?

 

[02stangbang]

watch the COPS while the engine is idling. If any are vibrating bad, a plug may have blown out or you may have a ripped boot.

 

[lvmustanggt]

I scan fot dtc code but there are non. WIll check coil plug tonight at dark to see if there any spark leaks. I am thinking my upr cats are cloged cause it smelled bad.

 

[lvmustanggt]

Just bought UPR X-Pipe off road, hope this will help. Got a good deal on ebay . Brand new for 99.00+39.99 shipping .

 

[Pearl02]

Just bought UPR X-Pipe off road, hope this will help. Got a good deal on ebay . Brand new for 99.00+39.99 shipping .

Did that fix the problem? Pearl02.

 

[merc123]

My first thought was a blown plug...

 

[lvmustanggt]

Did that fix the problem? Pearl02.

I will get it on thursday 24th.

 

[lvmustanggt]

My first thought was a blown plug...

I hope not, I will be super mad if that happen.

 

[02nightmaregt]

Lets all hope its just the x-pipe