Re: EEPROMs
Todd, I'm so glad you asked this. I've spent an enormous amount of time in the last month dealing with this issue. I've got a radar box Ultimate chip, a Moates.net "BURN1" Flash N Burn USB chip burner, and some AMD 29F040 4Mbit EEPROMs. The only chip burning I did was to take my UltimateV7 bin and add WB02 datalogging to it. That worked great for about a year.
Just recently I started doing the actual chip editing (table changes). Immediately I was met with failure. The chips always burn and verify properly (I have 2 different 29F040s), but when I run them in the truck, all 16 programs are available, but the truck will "disconnect/reset the ECM" every 30-90 seconds. Especially when you go WOT. It will reset the Knock Count to 0, the engine almost stalls, the check engine light flashes for a brief instant (no code), and then it acts normal. So it's as if the chip is *very close* to working, but a small electrical glitch. Is the 29F040 (purchased from
www.moates.net) an incorrect speed perhaps?
Todd, I can't explain why yours goes into limp home mode, mine works but with these small glitches that prevent me from really driving the truck. I tried both EEPROMs in case I damaged one with static electricity but they both respond the same. I put the original Ultimate EPROM back in, and no cut-outs whatsoever. The weird thing is, how did I program the original EEPROM with the WB02 code and race with it for 1 year? And now I can't even seem to reproduce the same thing? (Basically I painted myself into a corner and now I have no WB02 datalogging ultimate chip

)
Is there anyone out there using FLASH EEPROMs with their Ultimate chips? Please tell us!!