went through my second set of spark plugs!!!! im fouling out my spark plugs left and right anone else have this problem....05 2.2 cobalt coupe 5 speed

 

What kind of plugs are you running.. and how many miles are you putting on them before they foul

 

i put ac delco iridiums at 101,000miles then they fouled out at 105,000 then i put my stock ones back in then they fouled out in a week....now i have bosch 4 platinums and they almost pooped out on me i turn it into the shop today and they cant even figure out why the car is stalling out and fouling my plugs

 

any cel's or codes?

 

yeah ive been having the same problems. ive been fouling my plugs about every 3k miles r so. im running ac delco as well. but it might be caus ehtey are step 2 colder

 

never ever had a probelem running 2 step colder NGK NKR7E plug when i was spraying N/A never fouled them

 

i ran step 1 colder ngk for like 500 miles and they was done.

 

somthings not rite then

 

They are fouling because you're too rich, or they are too cold of temp range.

Any codes?

 

it could be a number of reasons that they are fouling out. Anything from what 383 said, to too low of an octane rated gas, or carbon build up. Pics of said fouled plugs? That would really help

 

i have no CAT and those r the only codes i am throwing
And i dont know how to post pics but i can yell you they were fouled out because the plugs were just hammered with fuel....smell bad and black.all 8 are toast cuz i tested them and all 4 do not spark at ALL
i also thought that is was the fuel so i ran it till basically empty(just a little bit left) then i went to sunoco and put 94 with that fuel treatment stuff in and the same happend...i was cruzin nd it is almost like someone took the key out of the ignition...so i dopped it into second...and it turned back on...all the other times it just stayed dead....

 

notice any mpg changes?

 

yea its worse but i havent had a cat for about a year now

even at idle my car dies after idling for about 5 to 8 minutes

 

change your first o2 sensor? you have codes? or anything? i would check again seems like somthing is fucked up

 

x2

 

What is this "GM tune" mentioned in your sig?

 

Too Much Fuel.......

 

my friends dad worked for GM ...before he retired he did reflashes for the emissions and tuned the new cars to pass the emissions...so he took his computer and put in a tune for my car that was made by his work partner... we had to do it like 5 differant times to get it to run right tho...he took off the Gov and made it spark differntly or somthing at diff rpms...not to sure but to me it looked confusing as all hell haha...it did make the mpg a little worse cuz he made it dump a little more fuel to accomidate for the spark. but it has been like this for about 2 years...so it cant be that problem

 

If the front 02 sensor has gone bad, it could be commanding way more fuel than it needs. Even if the tune was fine prior to this

 

did anyone suggest unplugging the battery? I know that my ECU doesn't like me changing things with out reseting it...

 

The ICM(igniyion Control Module)was bad and it was 314 bucks to replace...**** i guess cobalts have problems with them going out