vcm id =yyyyyyy

[camaro1]

ok, so im working on a 2001 camaro ls1, i try to read the ecm all ok, i go to license the file and the vcm id is all yyyy's

from all the searching i see on here the ecm needs to be re-flashed with a tech 2, i am a gm tech so i have my own tech 2, mdi, tis log on.....

i re-program the ecm with tech2, read it again, same thing. i try off board programming with tech 2 and tis, read it out with hpt, same thing. i try different vin numbers and everything programs fine with the tech 2 , vins change fine but the vcm id is still all yyyy's ???

what needs to be done to get a ecm to get a new vcm id#??

i even went and picked up another fresh ecm from the salvage yard and used the tech2 to program it and same thing, the vin's are being programmed fine but still no vcm id #

i have the latest beta, so i even tried another laptop with just version 2.22 loaded on it and same thing.

[camaro1]

info log:


Type: GM Firebird/Camaro (V8) 2001
VIN: 2G1FP22G012117405
VCM ID: ÿÿÿÿÿÿÿÿÿÿÿÿ
BCC: ÿÿÿÿ
ECM Seg 1 ID: 12202088 [Editor] [Scanner]
ECM Seg 2 ID: 9357746
ECM Seg 3 ID: 9358927
ECM Seg 4 ID: 9358250
ECM Seg 5 ID: 16264430
ECM Seg 6 ID: 16264619
ECM Seg 7 ID: 9373542
ECM Seg 8 ID: 9362082
ECM Seed: 0

this is after i programmed it in the vehicle with my tech2 and another vin i found online, tried several vins and the same results when i read out the ecm with hpt, the vin changes and the ecm reads fine but cant licence the file because it has no vcm id,,, tried 3 different ecm now all with the same results and 2 different laptops one with the latest beta and the other with version 2.22

[Chris@HPTuners]

the problem is the segment containing the serial # info (NVRAM) has been corrupted. tech2 doesn't reprogram this segment directly.

The only way to restore it to something normal is to use a file from another PCM and do a write entire. You can still tune the PCM as is, but you need the year/model license to do it.

Chris...