Today i had a customer bring me a 96 prelude single cam that has a turbo kit on it. He bought an ECU with basemap from a guy on ebay so i have no idea what ECU it is, but it is an auto ecu. He had a basemap on the car and said the tranny has been shifting fine but hasnt been beating on it. With his setup we found Crome wasnt going to cut it so were ordering Neptune for it, but still unsure how all the auto stuff works. I also have a 92 civic turbo auto coming next week for a tune and im reading on the limited info i can find on here that on the single cams, the trans info is in the ecu. Theres no separate TCU for civic's. Can we just chip the auto ecu for the civic and have it run normally? Or are we SOL for the civic? Has anyone personally dealt with this? Please refrain from the typical "sell it and buy a manual" type of responses. Thats not an option in either car.

 

The only thing you can tune an auto ecu on is Crome or with a hex editor, either P13 or P28 base depending on the ecu (either use the existing rom or find the A/T P28 base rom on PGMFI).
P28 and P13 base roms do not support datalogging, so it will all be trial and error.
Neptune and Hondata don't support A/T roms.
Or, you could keep the existing chip on there and tune with a piggyback controller. Apexi VAFC, AEM FIC, Greddy eManage. Personally that's the route I would go, I don't have 5 hours to blindly tune a prelude.

 

NepTune does support Auto. It's been done a few times, but of course I can't find the threads anymore.

 

^ learn something every day. I've tuned a total of three A/T Hondas on Crome P28-A52 in my lifetime. I'll see if it works on Neptune if I ever tune one again.