Spartan 250 tune

[ThaiBoxer]

Hey guys,

Ok well I just got the spartan and loaded the 250 tune and wow I never knew a truck this big could pull sooo hard. well I love the power but i have a couple issues.

1. In 5th gear when i let off the gas it nose dives.. it doesnt slow down easy

2. When I started it this morning and it went in to high idle i sounded like it was misfiring

3. When shifting from 1st to 2nd and 2nd to 3rd it shifts VERY hard

4. When it goes from 4th to 5th it dosent switch untill 2,100 or 2,200 rpms even if I am light on the gas.

Is this normal for the 250 tune?

Thanks!

[superstroked1]

Have you done the transmission relearn yet?

[superstroked1]

Transmission relearn


from a dead stop on all of these:

0-65 mph at half throttle 2 times

0-75 mph wide open 2 times

you may want to use four wheel drive to prevent tire spin...on the wide open throttle run you want to floor it instantly..you need to come to a complete stop after each run...this should help you some with most of the issues for the shifting and such.

The misfire or "lope" sound you are hearing is something that mine does in high idle as well...doesnt seem to hurt anything but, others have the issue too.

[ThaiBoxer]

Ok thanks!.. now do i have to do them back to back or can I do one then go make a uturn and do another one?

[superstroked1]

I would try not to hit the throttle after each run if possible so that it doesnt try shifting...U-turns shouldnt be that big of a deal

[Jacob_24]

Get a 250 tune from KEM and you won't have hard shiftings no more. Transmission relearns procedures are useless as our tranny are adaptive and they adapt to our driving each time.

[superstroked1]

Originally Posted by Jacob_24

Get a 250 tune from KEM and you won't have hard shiftings no more. Transmission relearns procedures are useless as our tranny are adaptive and they adapt to our driving each time.

the relearn shortens the learning curve as it gets you through all of the gears...yes, it will learn over time as you drive but, this gets it heading in the right direction quicker.

[ThaiBoxer]

well I dont have the money to get another tune, thats why I only have up to the 250 tune lol... ok thanks for all the help.. now I just have to find a place where I can do this.

[Jacob_24]

Originally Posted by ThaiBoxer

well I dont have the money to get another tune, thats why I only have up to the 250 tune lol... ok thanks for all the help.. now I just have to find a place where I can do this.

It costs 40 bux from kem to get a custom 250 tune if you already have Spartan tunes. Once paid he will email you a copy of the file and you just have to upload it onto sim card and upload it in the truck.

[ksipes1]

Originally Posted by Jacob_24

Get a 250 tune from KEM and you won't have hard shiftings no more. Transmission relearns procedures are useless as our tranny are adaptive and they adapt to our driving each time.

What Jacob said! KEM rocks! But get the 345 tune, you will never change back!