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Been interested in TCs since I first learned of them while hooning my '86 2.3 Ranger 20 years ago. FF to this summer when a guy is giving away a 5-spd needing work.
New battery, check the fluids, add some gas fresher than 7 years old.... she fires right up! No knock, no smoke (light or dark) up to 4k, no leaks. Alas, no idle.
Super smooth all through the Rs, down to 600-700 with no hiccups. Only it needs a tad of pedal. If I come completely off, it dies.
In chasing down the idle, I've come up with a more fundamental question that should be easier to answer. Where the heck is the EEC-IV port on the '83? I see they're a bit unique:
EEC-IV first appeared on the 1983 1.6L EFI, 2.3L High Swirl Combustion (HSC), 2.3L EFI Turbo and 2.8L truck engines. With the Escort, the base engine was the same as all US Escorts, the 1.6L CVH, but featured unique intake and exhaust manifolds in addition to EFI. This was non-sequential EFI, meaning 1/4 of the required fuel for each cylinder was injected into the intake manifold, near the intake valve for each cylinder firing.
The first EEC-IV module was unique from future modules in many ways. It had a unique "edge card" connector. This was a "cost savings" over the EEC I/II/II "pin and socket" connectors but was quickly abandoned due to reliability concerns. It utilized a 40 pin "DIP" IC package which limited the number of inputs/outputs. It also used only 1 memory chips which contained 8K bytes of MROM instructions/data and 128 addition bytes of RAM.
All future EEC-IV modules used a unique "through hole" IC package with staggered pins on all 4 edges. This allowed all available I/O to be utilized. Memory quickly grew to 2 - 8k/128 MROM/RAM chips and then a separate 32K MROM and 1K RAM. Bus loading limited the design to 2 external memory devices.
Anyway, excited about doing some different things. Was originally assuming I would be going through the engine but might not be the case. Kinda thinking messing with a Speeduino might be fun. My first real performance turbo though I would be thrilled to some day have the hp of my 7.3 PSD!
Todd
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