Joined: 12 Dec 2004
Location: Spring Grove, PA
|Posted: Thu Sep 27, 2012 1:35 pm Post subject: I got Dataloging working now Emulation won't work on my APU1
|I’m working on a 1990 Chevy Silverado 7747 ecu. I have had a socket installed in the 7747 unit for a few years and had burned a chip with the stock ASDU.bin program. Since then I have gone to TunerPro V5 and have my old AutoProm replaced. (Hopefull not too many variables.)
I got the Data Acquisition working 2 days ago but, can not get the emulation working. I pulled the working 29C256 out of the socket and installed the AutoProm ribbon cable, making sure that the RED strip was on the number 1 end of the socket. No chip in the AutoProm ZIF socket.
I put the TunerPro into “Emulating” (green) mode, Upload current bin to emulator, Verify (green) and then start the truck. SES on solid and I can tell it’s in limp home mode. I can Data log in LHM but, reads really off. I can “Download current bin from emulator to file” and the file looks the same as what I uploaded.
I also pulled my 29C256 into the AutoProm ZIF socket and read the prom, and saved it to a test1.bin file. Used test1.bin to emulate and I got the same results, LHM!
Pull the AutoProm cable back out and reinstall the programmed 29C256 form before and the truck runs fine again.
What am I doing wrong?