The wheels of progress have a crawl ratio. This sure doesn't seem like two days work until you do it.

Trimmed and painted ECU mounting frame:

Relay board bracket cut/bent/drilled and mounted:

Relay board harnesses sorted and connected:


Two cabin entry holes drilled and grommets installed - upper is for the ECU main harness, lower is for the MAP sensor hose:

Relay board wired and mounted:

Aside from the neater look of hacking the OE harness, another reason to avoid the relay board is the extra harness needed between the ECU and the relay board. Here are all three harnesses nearly ready for final connections... the one coiled on top of the relay board connects to engine sensors/injectors... the one on the battery connects to switched/unswitched power, fuel pump, engine ground, o2 sensor heat... and the one coiled on the cowl is the connector harness between the ECU and the relay board:


A KnockSense translator is on the way, so I won't final install the harnesses until I see what changes I may have to make to run the knock sensor.

It can get very confusing mentally... sorting the connections that do and don't run through the relay board.... perhaps a good reason not use one. If things work as hoped, the relay board may be eliminated later and the OE harness hacked to suit..... which would eliminate nearly all of those three harnesses.

Frank