Bad ECM questions

[VENOMOUS1 RACING]

OK so I received an ECM to install in my truck and this damn thing acts like something internal is bad? I know alot of fuel injected cars incorporate the fuel pump relay and fuel shutoff relay inside the ECM. Does anyone kow if ours is this way. I get no codes but the truck starts normal, runs for about 3 seconds and dies. I even gave it gas to try and keep it running and it's like the fuel is shut off and dies.
I am wondering if it has someting to do with the ECM not having my vin#? I almost think it is the problem. This is the one with the SCT tuner and I tried to flash it with different tunes and it accepted and tuned correctly, but still won't start and stay running.
Our original thinking was that if the SCT and ECM were together that the vin# wouldn't matter, but I'm thinking there is someting else in the ignition system ( maybe security system) that won't let the truck run? Any input would be appreciated.:dontknow:

 

[TNVIPER]

Sounds like maybe it lost info from the chip in your keys..:dontknow:

 

[FerrariTruck]

did you send the pcm to have the in of your truck flashed in there?

 

[TheMoparConnection]

its your sentry key system. do you get a red light on the dash that stays on steady?

 

[kickinassrt-10]

all pcm's need the vin flashed to specific vehicle....
if it's a stock ecm your local dodge dealer can flash your vin for around a $100

also I don't understand why you are doing it that way.....Use your stock pcm from your truck and use the SCT with it...

 

[SANTEEN]

its your sentry key system. do you get a red light on the dash that stays on steady?

:dito:

 

[VENOMOUS1 RACING]

all pcm's need the vin flashed to specific vehicle....
if it's a stock ecm your local dodge dealer can flash your vin for around a $100

also I don't understand why you are doing it that way.....Use your stock pcm from your truck and use the SCT with it...

YOu are all right! I just talked with Dave at B&G and he confirmed it's all useless unless reflashed with my vin. Originally the seller told me if the SCT and ECM came together then it would be fine, but that's not the case due to the Sentry Ignition sytem.

I think if I can put the ECM back to stock via the SCT then use my factory ECM that might work? If it'll let me do this. It DID let me install tunes successfully with the SCT and ECM I just got but won't start. Seems if I can flash the SCT back to stock then install the original ECM and use the SCT to flash the tune to it that may work? Am I thinking correctly?:dontknow:

 

[kickinassrt-10]

YOu are all right! I just talked with Dave at B&G and he confirmed it's all useless unless reflashed with my vin. Originally the seller told me if the SCT and ECM came together then it would be fine, but that's not the case due to the Sentry Ignition sytem.

I think if I can put the ECM back to stock via the SCT then use my factory ECM that might work? If it'll let me do this. It DID let me install tunes successfully with the SCT and ECM I just got but won't start. Seems if I can flash the SCT back to stock then install the original ECM and use the SCT to flash the tune to it that may work? Am I thinking correctly?:dontknow:

Yes before pulling the pcm out...install the factory tune back in it using hte SCT (this way the SCT is not locked)
once you have done this install your factory PCM and then upload the tune you want from the SCT and you should be good to go!

All the SCT does is act as a flash of your stock computer and holds your factory tune!:rock:

The SCT should be usable still on your vin as long as it has vin slots open still! You will not need new tunes since the SCT picks up vins instead of needing them flashed to it!

 

[Tooloe]

unless the SCT picked up the old ECM Vin again and it's starting all over again o scott PM me your number i liost my phone last night

Edit- he beat me to it!

 

[VENOMOUS1 RACING]

Yeppers you guys are alright! I did see a vin# while scrolling through the menu but didn't compare it to the ECM. Hopefully they are the same and that Sentry shit doesn't need be involved in turning back to stock.
Where in the menu does it put back to stock? I found the tunes in the SCT but never say a return to stock option unless it's in the DTC area?
Dave at B&G said the SCT was trash? I don't think that's true. He says it's locked and doesn't have more than one slot? I don't think that's true cause I think it said 2 slots open in one of the menus I looked at?:dontknow:

 

[kickinassrt-10]

Yeppers you guys are alright! I did see a vin# while scrolling through the menu but didn't compare it to the ECM. Hopefully they are the same and that Sentry shit doesn't need be involved in turning back to stock.
Where in the menu does it put back to stock? I found the tunes in the SCT but never say a return to stock option unless it's in the DTC area?
Dave at B&G said the SCT was trash? I don't think that's true. He says it's locked and doesn't have more than one slot? I don't think that's true cause I think it said 2 slots open in one of the menus I looked at?:dontknow:

Yea he might of mis-understood you:dontknow:
As soon as you hook the SCT up it should say enter vehicle programming..in there, there should be an option to return to stock!
Also if you go to one of the settings it should tell you how many vin slots were used/available...

 

[HaroldD]

It was my understanding that these DCX SCTs are single VIN specific, but can hold 3 tunes (Stock, plus two aftermarket). You can upload different tunes into those two aftermarket spots, but not swap this SCT between VINs, even after loading the stock tune into the ECM.

Dave would know - he's the original source of most tunes out there and was doing it back when you had to send your PCM to him before the handheld SCTs.

Yeppers you guys are alright! I did see a vin# while scrolling through the menu but didn't compare it to the ECM. Hopefully they are the same and that Sentry shit doesn't need be involved in turning back to stock.
Where in the menu does it put back to stock? I found the tunes in the SCT but never say a return to stock option unless it's in the DTC area?
Dave at B&G said the SCT was trash? I don't think that's true. He says it's locked and doesn't have more than one slot? I don't think that's true cause I think it said 2 slots open in one of the menus I looked at?:dontknow:

 

[VENOMOUS1 RACING]

I do recall seeing a vin# in the SCT. I also recall there being 3 tunes in the SCT being 2 NOS and 1 stage 2. I also found an area within the menus that said 2 slots available? Anyone have input as to what " SLOTS " are other than machines in casinos?
Are they empty areas for more tunes or more Vin#s? I have heard before that you can tunes up to 3 trucks before locking? Anyone have the real deal?

 

[SANTEEN]

It was my understanding that these DCX SCTs are single VIN specific, but can hold 3 tunes (Stock, plus two aftermarket). You can upload different tunes into those two aftermarket spots, but not swap this SCT between VINs, even after loading the stock tune into the ECM.

Dave would know - he's the original source of most tunes out there and was doing it back when you had to send your PCM to him before the handheld SCTs.

No sir. They can do like 3 or 4 vin's as long as they are put back to stock.

 

[VENOMOUS1 RACING]

Thas the answer I was hoping to hear! Not sure why I Dave said that? He was being short with the conversation anyways. I'm sure he'd rather someone pay him the full tune price vs. all this changing vin# stuff although it's easy work for him. It's the software that costs. Thanks man I hope we are both right!:marchmellow:

 

[moparracing]

It was my understanding that these DCX SCTs are single VIN specific, but can hold 3 tunes (Stock, plus two aftermarket). You can upload different tunes into those two aftermarket spots, but not swap this SCT between VINs, even after loading the stock tune into the ECM.

Dave would know - he's the original source of most tunes out there and was doing it back when you had to send your PCM to him before the handheld SCTs.

Actually, the SCT holds 3 aftermarket tunes + the stock tune..... there has been some debate to how many times an sct, that has been "returned to stock", can be used with other vin's..... i've heard anywhere from 3 to 5 before it is locked........
hopefully, putting the stock pcm with the matching vin to your key sentry works & hasn't locked you out from starting the truck...... if it has, a dealer (pricey) or a local locksmith can unlock the key sentry for you..... then just use the sct with your stock pcm, if it (the sct) isn't locked itself from too many vin swaps.

if the sct is locked, it's only ~$150.00 to unlock it & ~$200.00 if you want new tunes from roe or dc performance.....

good luck.

 

[kickinassrt-10]

I do recall seeing a vin# in the SCT. I also recall there being 3 tunes in the SCT being 2 NOS and 1 stage 2. I also found an area within the menus that said 2 slots available? Anyone have input as to what " SLOTS " are other than machines in casinos?
Are they empty areas for more tunes or more Vin#s? I have heard before that you can tunes up to 3 trucks before locking? Anyone have the real deal?

Been down this road already, trust me! My brand new SCT has 3 vin slots as I'm sure is the case with the rest of the SCT tuners out there.
If the tunes (which 3can be loaded to the SCT at any given time) are not specific to your truck then you may want to send Torrie @ unleashedtuning.com an email to get a set of tunes for your truck.

 

[VENOMOUS1 RACING]

UPDATE!!

It did work!! I put the matching ECM I was sent on the truck and returned to stock, then proceeded to install my factory ECM and flash the stage 2 to it. Tuning Successfull!! There are indeed 3 Vin slots and it tells you how many are left. There are 3 tunes stored as well. Thanks guys for your help as I was starting to get frustrated as hell. Now I understand what's happening to these guys buying SCT that haven't been returned to stock and are rendered useless. Good thing I asked for the SCT and ECM together thinking they would work together or I'b stuck with a useless SCT like others.

 

[Brat]

Glad it worked out for you.

 

[kickinassrt-10]

It did work!! I put the matching ECM I was sent on the truck and returned to stock, then proceeded to install my factory ECM and flash the stage 2 to it. Tuning Successfull!! There are indeed 3 Vin slots and it tells you how many are left. There are 3 tunes stored as well. Thanks guys for your help as I was starting to get frustrated as hell. Now I understand what's happening to these guys buying SCT that haven't been returned to stock and are rendered useless. Good thing I asked for the SCT and ECM together thinking they would work together or I'b stuck with a useless SCT like others.

Good deal! Now you kinda got a glimpse into my frustration a few weeks back...becasue these can be misleading and I knew exactly what I was asking the guy I bought it from but was lied to:argh:
Are those tunes you are using made specifically for your truck?
I ask because if not you may want to strongly consider spending the $200 to get 3 tunes designed for you truck from Torrie, that way there are no guesses or degree timing issues!