MAF Conversion
Senior User
Joined: Nov 2005
Posts: 457
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From: Lathrop, MO
Originally Posted by Kemicalburns
but you need a speed density ecu that will allow for changes to the ecu. most pre 92 speed density ecu's will not work.
Huh? AFAIK all EEC-IV's (whether SD of MAF) are "changable". Effectively, if the J3 port is active (ie "chip" plugged in) then the ecu will look at the port address for control table data and not the onboard memory.
The issue with any EEC-IV is knowledge of addresses are being used for the various tables for a specific program. I'll grant that it's more likely that fewer of the older SD programs have had there table addresses cracked. But...that doesn't mean that it hasn't been done, much less can't.
