I’ve been playing with the LC-1 logging and roughly adjusting the mixture based on the traces but with the ECU and LC-1 being separate it is very much a case of adjusting the fuelling a range of cells and hope for an improvement. The improvements are coming and it is starting to pull a lot better. I’m even getting used to the handling characteristics so it is more fun now.
The discovery of the day is that the DTA E48 ECU I have is at V8 of the hardware and this means that it will take a 0-5 volt wideband lambda input and the LC-1 provides this on the #2 analogue output. This afternoon I wired up the LC-1 to the ECU and created a lambda translation table covering the range supported by the ECU. Firing it up and I had a reading in the ECU software. This might help me get the mapping sorted quicker although the DTA will only record the last 3 minutes of logs. I’ve just remembered that MegaLog Viewer should be able to read DTA files so that is something for tomorrow morning.