Emulation Not Working with APU1 and 165 ECM.

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Emulation Not Working with APU1 and 165 ECM.

Post by myunker83 » Tue May 29, 2018 10:16 am

I cannot get my APU1 to emulate with my 165 ECM. Both switches are set correctly, the cable is installed in the header in the proper orientation. I can upload the bin to the AutoProm, successfully verify it, but when i turn emulation on and turn the key to "on" the fans kick on. I know it's in limp home mode. I can burn a chip and run it off of that, but it won't emulate. Any ideas out there? thank you.

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Post by Mangus » Thu Sep 06, 2018 3:02 pm

Are you sure the emulation header is properly socketed in the ZIF in the ECM? Also, it's a good idea to disable the checksum if you haven't already. Do this by changing the mask ID byte (stock is either 0x32 or 0x6E for the '165) to 0xAA.
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1989 Trans Am

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