diconnecting battery after tune
 

If I tune my car, then I have to disconnect the battery? Does this have to be don at the battery? Or, does disconnecting this jump post under the hood perform the same function? Thanks.

disconnecting the jump post won't do it... that's just a remote jumper cable location - power will still be going through everything because the battery is connected...

you need to do it at the battery itself...

Tune doesn't affect how you would handle a battery disconnect. If you disconnect the battery the only thing you will have to mess with is the window indexing, and there is directions in the owners manual on how to reset that easy.

To disconnect any car battery - do it at the battery, negative cable first.

Then when reconnecting - negative cable last.

are you using hptuners,, if you get the latest beta they have this issue fixed.

don't want to say if I tune or not:) I guess I will disconnect at battery if I decide to tune

When BOTH positive and negative cables are OFF of the battery, touch the two cables together a couple times to down power the keep alive feature in the ECM.

I have the latest beta and it still has the problem. I have to disconnect...:mad0259:

strange, i also did the 2.5bar maf upgrade when it came out so i could tune the actually ve table and have complete fan control, and i havent had to disconnect any thing after doing the upgrade

Yeah, I disconnected my battery and it had no affect on my tune. But yes, my windows had a little trouble indexing. But that corrected itself.

just unplug BOTH cable to the ecu. does the trick everytime

If you decide to go the tuned route, SCT's programmer will reset the trims/learning for you. No need to disconnect the battery or ecu. Which in my experience does not immediately clear anything. I've disconnected it, logged the car and still saw the same learned values. After using the SCT I don't have to worry about any of this.

Intersering, how did the 2.5 bar tuning go. What sensor you use?

stock sensor, you can scale the ve table to whatever sensor you want to use, 1,2,2.5bar

Is it safer to disconnect the battery? Wondered if unplugging the ecm runs any risk of a voltage spike. It would be more convienent to just unplug the ecm.