u sure about autolite? heard they suck to stick with ngk, but im about to go to the store to grab new plugs what gap?. Do u have any idea what could be causing me to peg rich?

ill post any codes I get sir.

 

I've never had a problem running a simple copper plug.
For $8, why listen to stories and try them for yourself.

.035 is a good starting point for your mods.

Your plugs looking the way they do atm is a good indication as why you are running so rich.
It's like I mentioned in a previous post. Check the coil packs if new plugs do not solve it.

It's intermittent, and only happening after repeated pulls.

 

Lol ill try then i just hate to add to my problems was all i meant.

 

I can tell my plugs are ready to be changed. They like to misfire in high RPM

Ive ran rich a lot this winter because of the MAF getting wet.

 

I thibk 3923 is stock heat range and 3922 is one step colder what ones do i need lol

 

Stock heat range is fine, I've ran that plug on all the Tvs, lysholm, mp90, m62 setups ice done.

 

I was meaning to see if his wideband was going wacko. Mine did just recently

 

standard copper is best stay away from platinum the stock number for the 1 step colder is 4644 ngk

 

LTFTs disabled? Is it holding a trim when you got WOT (possibly gradually increasing as you drive around ? lol)

Cat over temp disabled?

 

OK update, I changed in plugs autolite 3322 gapped at .034, I just did a bunch of pulls(5 or 6) and even race and beat a modded mustang gt 4.6L(he looked shocked bahaha) and never went full rich, stayed around 10.9 to 11.0. However I had my interceptor up and watching the misfire option that list 8 cylinders and it was showing a lil miss fire(1 to 2) in all of them(all 8 not just 4) during normal driving(cruising) so im not sure whats up with that. Cylinder 8 was even showing 16 misfire randomly so any advice would be great 100% meth! but its seems u have fined my rich issue atleast, im data log in the morning and ill let you know if it is still holding up strong.

 

ltft is not disabled, not sure what disabling them does if u would like to explain. I didnt watch the fuel trims during the pulls but I can do that later what one do I need to watch?

 

COT says 0.00 for min and max

 

Well iv been reading and it sounds like i have ghost misfire, i dont have any cels and their is no loss of power or hesitation or any kinda pop sound from the exhaust and its only happen during just normal driving. Anyone can confirm this is normal?

 

Check for any vacuum leaks just in case

If a line needs to be replaced do it

Have james tune you're trims

 

no its not normal

 

Iv read that this happens to most cars, I even had my friend check his interceptor gauge and hes does the same thing, it seems to be common thing I mean I dont have 8 cylinders so how can I have misfire on them. LOL


Anyone that has a cobalt and a interceptor go to the misfire screen where it shows the 8 cylinders and just cruse around for a lil bit and see if u get random misfire on all 8 of them.

 

mine dosent show 8cyl

 

mine has the chevy or saturn symbol u can pick from that will come up when turned on so I know its the one made for the cobalt and it shows 8cyl unless they is an option I missed to change it to show 4.