I've been pondering a SD to MAF conversion, and was wondering what all I would need. A friend has a caprice LT1 PCM, MAF, and wiring harness, and said it would work only I'd have to take the cars computer to a dealer to have it flashed and tell it it's a MAFed car. Seems right, as far as I know. Anyone done this before? How hard is it?

 

I want to convert from MAF to Speed Density. I've got the Caprice LT1, MAF, and Harness.

Your 93 ECM won't do MAF. You will probably have to use the Caprice PCM and harness. Only thing is is that the Caprice harness routes the computer to the drivers side battery tray. You might be able to open up the harness and move the wires around to get the PCM to your stock location.

You'll also need to change O2 sensors.

I'll trade you my PCM/Harness setup for yours. I've got the LT4 knock module, MAF, and 2 O2 sensors.
Or if you plan on selling yours, how much?