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I've plug in the newly purchased ecu and follow the step for calibrating the TPS, IAT and MAP. When doing the trigger calibration, i went through the steps only to find out that the car does not crank when the start key is turned Currently running on the stock mapping for Evo 1-3 without the O2 sensor, i've cleared the error by changing the error limit to zero. Else, i have done the start test mode on the ecu with same result. No voltage is detected on the multimeter when testing for the current at the starter relay. The ecu reads a drop of ~9.5V from 12V during cranking and all the dash dims but no crank at all. The car runs brilliantly on the stock ecu.

I have an e30 with an S52B32 swapped over from an e36 M3. The motor is currently stock, I run a modified OBD2 dme programmed to delete functions and trouble codes that I don't use. The only people who can program this unit are in the states and shipping me DME back and forth with every change I want to do is tedious. I'd like to be able to do this local either with friends (who are experienced with tuning) or on a dyno. You guys sell a plug-in ECU for an M50TUB25 which is like an early version of my engine as far as I know it. From what I can see the DME pinouts are close, but not exact. I'm considering picking this up for the sake of having it fit like oem, but it may take some wiring to make it work anyways in which case I'm wondering if the v88 is a better fit overall. I've already wired my entire engine harness for the swap, I'm not afraid to open the main DME connector and move pins around to match the plug-in setup. My friend has parted out his supercharged Miata and is looking to sell his V88, which is why that's the other option. (The plug-in unit would be cheaper) PS: If I can get onto standalone the mods coming down the pipe are simple things, exhaust (headers and a better system), cams (schrick), and the big one is I'm currently designing an adapter plate to mount the S54B32 independent throttle bodies and plenum to the S52 head.