You are on-point. The EGI and Ign Coil relays share 2 wires instead of 3 (mistake on my part) I put the key in the on position and measured voltage at both EGI load pins (3 and 5). Results were 12v from the battery side and 11v from the ECU side. With the key off, only the battery side has power. Mind you, both of these test were performed without the EGI connected. This means that the MAF and CAS still receive power without the EGI relay but the source may not be as clean as it needs to be. i will do some further testing on Friday and will report back.
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