ECU question

[dunit121]

Is a 08 ecu compadible with an 09 without a reflash? i sold a ecu recently and it isnt cranking up.

[Tuner923]

Originally Posted by dunit121 Is a 08 ecu compadible with an 09 without a reflash? i sold a ecu recently and it isnt cranking up.

the vin has to been sycn'd i tried to pull mine and throw it into my buddies was a no go. they were both '09s too

[dunit121]

the car has a security problem it seems

[Tuner923]

yea a lil lock thing popped up on the dash

[dunit121]

yah that thing

---------- Post added at 10:49 PM ---------- Previous post was at 10:47 PM ----------

how do i over ride that?

[1WhiteSSTC]

Originally Posted by dunit121 yah that thing ---------- Post added at 10:49 PM ---------- Previous post was at 10:47 PM ---------- how do i over ride that?

u have to use an ECU programmed with your VIN, easy way is with a Tech 2, usually only available at the dealership, not sure about other options.....If your shit is locked it means the ECU is not registering as your VIN.

[Tuner923]

should be able to do it with hptuners or trifecta.

send jp a pm he is my tuner so he'd know or know where to find the answer.

---------- Post added at 11:55 PM ---------- Previous post was at 11:48 PM ----------

Originally Posted by 1WhiteSSTC u have to use an ECU programmed with your VIN, easy way is with a Tech 2, usually only available at the dealership, not sure about other options.....If your shit is locked it means the ECU is not registering as your VIN.

like he said the problem is the vins must match up.

[Projekt]

Dunit PM me exactly what you did. ill get to the bottom of it.

[Iam Broke]

I went through this with a member I sold a spare ECU to even though I changed the VIN in the ECU with HP Tuners. There is a 30 minute VATS relearn he had to do to it.

Here's the details from the email he sent me after he got it going...

---Quote---
its a pretty simple procedure..

You disconnect the battery
Change the PCM
Reconnect the battery
get in the car turn the key on
let it sit for 10 minutes or until the security light on your dash goes off
then turn the car off
and turn it back on sit for another 10 minutes or until the light goes off
then turn it off again
and turn back on and sit for 10 more minutes or until the light goes off
and it should start right up after shutting it off one more time
but you have to make sure you DO NOT touch or use anything electrical in the car like the radio and stuff because its learning the PCM. you also cannot open any doors or anything
you must do this even to switch back to your stocker

---End Quote---

Hope this helps you out! Sounds like you better roll the window down unless you want to sit in the car for 30 minutes.

[cobalt123]

sweet info