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Pulling a harness from the junkyard to use to build a test bench is high on the to-do list. One of the most pressing tasks is to map the microcontrollers inputs and outputs to their respective inputs and outputs on the module. Once I can assign register addresses to their respective functions, it will go a long way towards understanding what the code is doing.
I'm not too sure about this but I don't think there is going to be traditional lookup tables like EFI modules. The basic mapping in CIS is handled mechanically and the CIS module only serves as a fine trim to the basic injection.
The CIS provides transient enrichment up to 60 degrees C. I've noticed up to ~+20 mA EHA current when it is active. I'd like to find the function responsible for this and eliminate the 60C cutoff. This alone could make a noticeable improvement in throttle response.
I've attached 2 zipped bin files. They are named according to the bosch number on the EPROM. The 464 is from a random late black box CIS controller and the 973 is from a 90-91 300TE 4-M.
Just FYI, I'm actively looking for 300SL and '90+ 300CE federal CIS modules. Not looking to spend much, and/or would convert to socketed EPROM in exchange.
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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start
90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
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