LS Computer Help!!!
 

I have an ls6 with a cable throttle body... I am putting this in a 69 chevelle... i am using a 5.3 vortec computer but had it flashed to ws6 specs with maf sensor , front 02 sensor, etc... when i crank up the motor, it will start and rev up for 2 sec then die... the computer guy says the program is not sticking... any ideas why it wont run... i have 60psi to the fuel rail, all injectors are working properly... all sensors are new... Why wont it stay running??? ANY HELP GUYS??
Do i need a new ecu??

Did your tuner turn off the VATS theft system?

Need to remove VATS.

ditto. I know from experience.

Thanks guys .... I had my tuner take the VATS out... still same problem... can the computer go bad or not save??

Any DTCs? That sounds exactly like what I had when I didn't have VATS turned off.

Yes, computers can go bad. Usually all it takes is a good shock, or exposure (read: submersion) to alot of water. Sometimes they just crap out.

What does your tuner mean by "not sticking"? I'm sure if the tune wasn't saving, the software would let him know that it couldn't be flashed.

Yeah, I wondered about this statement too. It either flashed or it didn't. Make sure your tuner knows what he's doing. Either way, you definitely want the sticky software :D

Yea. I think it's time he went hunting for a new tuner. If VATS was in fact deleted, then it should run. I had VATS deleted off of mine, and it ran fine(except for the damn high idle I'm troubleshooting). If in fact his software isn't "sticking" then he wouldn't have VATS deleted, correct?

Interesting... thanx for the help guys, i ordered a new computer from oreillys... will have the programmed and make sure the VATs is removed!!!!

How much did that new PCM run you? You might have been able to find one here in the for sale section for cheaper.

I have a spare I'd let go cheap if you want to return the one you bought..