How to get PCM unlocked?

[Chevy366]

Ok, try it. But I'm telling you, I use the TIS web stuff too, what happens is the TIS stuff can't begin to write it. It recognizes it, just like the obd2 scanner can, but when it tries to write, it just fails.

Yep , you can't do it , like Allen says, you can ID the PCM but will not write to it .
The software sends a access code to the PCM chip , when locked the PCM returns a invalid code and the software can't flash to it , no way around it .
If you password protect your BIOS on your computer and then try to flash update the BIOS it will do the same thing , you would have to clear the EPROM of all info and then re-flash or enter password is the only way .
So I hear !

[GasGuzzler]

^^^^ Well then why did you offer? LOL

I never said I could do it I said I'd like to try...and no, if you came up here for this hahaha I would not expect to keep the tune for free.

Allen, I can't flash anything on the bench anyway. I'd have to swap it into a vehicle.

Why would a tuner that locks his tunes do free retunes for people that get updates at the dealer then?

[Chevy366]

^^^^ Well then why did you offer? LOL

I never said I could do it I said I'd like to try...and no, if you came up here for this hahaha I would not expect to keep the tune for free.

Allen, I can't flash anything on the bench anyway. I'd have to swap it into a vehicle.

Why would a tuner that locks his tunes do free retunes for people that get updates at the dealer then?

Gives me a excuse to go to North Sulfur River and look for more Mosasaur bones (Ladonia) .
Don't know why a tuner who locks his tunes would worry about having to re-flash because of dealer updates .

[6.0vortecchevy]

See this is why you guys should use efi live, i locked a pcm and just that easily unlocked it.

[GasGuzzler]

Holler then now that Allen knows I'm not trying to steal...especially from him.

[RedHeartbeat]

Nathan, talk to the guys at Huffines Lewisville. They have the ability to program a PCM on a bench there. I had them do two for me about 5 years ago.

[GasGuzzler]

I was just there earlier this week. Gil was gone but I talked to Matt and he never mentioned it. After I posted that I thought I might as well build a harness to do so (not sure why). BTW, whatever they have there to do that is homemade or aftermarket as well.