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Reducing Fuel Consumption of an 30 Year Old 8 Cylinder Pickup Truck

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vtsteam:
Opening it up:

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It contains two PC boards which are piggybacked to each other:

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There is an interesting system of aluminum tape and cement to transfer heat to the outer case heat sinks.

vtsteam:
Here are the boards apart. There's a cemented rubber shock absorber framework between the boards:

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And here's the outer side of the boards:

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vtsteam:
Here I am removing the soldered connectors, which I will use in the adapter cable. It's an old Radio Shack (who?) solder sucker -- maybe the same era as the PCM!

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vtsteam:
Here are the connectors I got out of the box. There are 5 of them. Three are 32 pint, one is 24 pin, and then there's an odd center connector, that actually just has a pair of pins shorted by the harness. The multipin connectors are color coded Red, Blue, Black, and White (or gray), and I've marked tops and bottoms as well as the color.

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AdeV:
Seems like a brave choice to me, mucking around with the OEM stuff.... Were you never tempted to do something like replace it all with a Megasquirt? EFI (if you've not already got it on the truck) would also be good for fuel economy, not to mention cold starting etc.

I know what you mean about '96. We were still just getting over the shock of seeing WIndows 95 for the first time... Most of us were still using i486 powered computers (the Pentium was out, but sooo expensive, but also sooo fast), computer memory was measured in megabytes not gigabytes, and a 1GB hard drive was considered cavernous!

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