>PROMID - Shouldn't this value be 0x0977 (2423 decimal) if the code is >really AXSH2423, or is my ecu running A?S?2329 software ? >From what I've seen the BCC sticker on the EPROM doesn't match the 'scantool' PROMID value. In your Memcal check the locations 0000,0001, that should equal your displayed PROM I.D. Ross Myers