ls1_cam2

iTrader: (1)

Tried to install a diablo tuner on my friends 00 Lightning and once I tried to install the tune the truck would not turn on and now it just sits there and the crank turns but nothing. Wondering what could be wrong with it. Think maybe the ECU f'ed up or something so can we just buy another one and just unplug the old and plug the new??? Need HELP!!!!!!!

A-Bomb

iTrader: (27)

The same thing happened to my brothers truck a few years ago. Somehow his ECM got screwed up and he had to get it replaced.

ls1_cam2

iTrader: (1)

Do you know how much a new EC was and how much to install????

TEX02SS

iTrader: (2)

this happened to me several times while hyperteching my 01 sierra....actually never could figure out the problem. The hypertech would just freeze up in the middle of the upload. I had to have it towed into the dealership twice and have the pcm reflashed. Then sent the unit off to hypertech to have it reset too as it had my 'stock tune' in its memory instead of the hypertech tune. Hypertech even sent me a new one and it still messed up. I got it to work once and finally gave up on it and got a Wester's PCM. It sounds like the lightnings pcm simply forgot how to start. I'd just take it to the dealership and have them flash the stock tune back on it. That should fix everything. And next time you try the diablo i'd do it in the parking lot of the dealership so if it does it again, you dont have to go far to fix it. Hope this helps.

imnotplutonium

iTrader: (4)

Yea happened to my buddies silverado a few months back. used the predator and then his computer crapped out. He had to buy a new one or had his shipped off to get reflashed by a tuner.... cant remember but he had to take it out.

Sprayed1998

iTrader: (10)

clean the contacts GOOD, might even wanna sand them down a bit, this happens alot and most of the time it is a bad connection. Is the chip SCT?

ls1_cam2

iTrader: (1)

Ok i will try cleaning the contacts and maybe even sand them. Next HUGE question how much does it usually cost to reflash the PCM???

redz_02

iTrader: (4)

Can you send the stock tune back to it? I would give diablo a call. I would also try updating the tuner, you can get the update from the diablo site you just need to go to radio shack and get a wall plug in and a pcm hookup.

ls1_cam2

iTrader: (1)

Tried to turn it back to stock and the POS just tells us that it can not detect/verify the type of vehicle its on. Anybody know how much it usually runs to reflash the EC???

thesource

iTrader: (60)

Did you remove the fuse for the fuel pump ? Sometimes it will blow while trying to tune it . I believe its #10 on the fuse panel .

ls1_cam2

iTrader: (1)

Didnt try that but will check right now and see what i get.

TEX02SS

iTrader: (2)

they will charge you for 1/2-1 hour of labor unless you have a hookup. Just depends on the shop rates. I remember paying $50-$70.

ls1_cam2

iTrader: (1)

**** thats what I am talking about finally got somebody that knows the price to reflash.

ls1_cam2

iTrader: (1)

called predator and got no f'ing where. They just put me on hold for like an hour so i called again and the same **** again. WTF do I do now???

PoorSVTMan

i know this thread is a little old, but ditch the diablo and go with sct but having a Lightning i figured id post up anyway...

ANother thing you have to do with diablo is make sure NOTHING is on while you are flashing the ecu. Keep doors shut so dome light,etc isnt on, turn radio off, etc... This is a common thing that diablo predators do... That being the reason i went with sct. Also your supposed to pull the fuel relays under the hood while loading a tune as well.

Any other questions just ask..