I'm a little late to this party, but I used Autolites and everyone said don't use them. So I switched back to AC Delco, I'm thinking about trying one step colder.

Anyway, I flashed my K04 trifecta tune after my K04+ fiasco and the tune was crap. I was getting KR like crazy, it would hesitate and act weird. No back fires or farts, but it felt slow and all that. Sent a log to Vince and he said it looked good. There's nothing he could do, the tune was fine.

So on a whim, I reflashed my tune... Bam everything was fine. KR went away, the hesitation went away and it felt like it pulled harder. So I don't know what I did during the flash, but I'm guessing I did something.

PS

Be careful with the gap widener of the coin gap tool. That's what caused me to break my tip of one of my plugs, thus causing me to get autolites.

 

The proper one step colder than stock plugs are NGK 3787's but I doubt you need them on a TF tune.

 

thanks a lot for the info! i have gapped plugs before so i think i should be fine. but thanks a lot for the warning!!!


i will reflash my tune this weekend and see what happens

 

^^^that right there is what I was talking about;
is seems as though sometimes the reflash doesn't take.

good to read... but why wait till the weekend?
if you have the hardware, why not do it tonight?

if you were to re-read my initial post, hopefully you can see that Vahdyx's post covers exactly what I was trying to encourage you to do initially...

 

hehehehe. i do not have the proper hardware... this weekend is when i am going to go see my trifecta dealer

 

Why is that? I was told (by a friend) that due to my altitude, it'll be helpful. I don't know for sure though.

Does it create problems.

Here's what I was gonna order.

NGK Iridium Colder Spark Plugs 08-10 Cobalt SS Turbo - 08+ Chevrolet Cobalt SS Turbo Spark Plugs

 

oh...

your initial post(s) made me think that you had the hardware.

 

yes... i had them... i was holding onto the cable pretty much all summer... lmaooo. and i just gave it back 2 fridays ago...

and i went WOT on this last tune for my first time last friday.

 

yeah..................

 

also guys keep in mind... reflashing resets everything as well... he could have a boost leak or something with the sensor and when he reflashes it causes them to work again till a couple cycles... I had this happen to me with the lower charge pipe sensor.

 

Atleast im not the only one with tune problems I guess....

Car kinda stutters at low rpms stft are anywhere from +/- 10 ltft is - 5.5 and climbing.

My car sits on 202 and never goes below 199.

AFR is 12.2 through 11.9 WOT

Problem is the shuttering in low rpm and the fact I can keep my foot in one spot and car will stutter and speed up when its suppost to speed up.

Im lost, and fact of the matter I had a cracked ring landing not long ago on the same damn tune and it doesnt need revised ... sound right... no