Logging standard ECU map ignition timing?
Discussion
I'm looking at swapping the standard ECU on my MG ZS 180 to an aftermarket ecu, probably a KMS. The KV6 isn't a popular engine among tuners so a base map is hard to come by. Rather than start from a blank sheet is it possible to use a data logging device to record the ignition and injector timings from the standard ecu? Has anyone done this before and what logging tool did you use? If not possible to capture the whole map it would be great even just to get the typical idle/cruise/full throttle timings.
I've heard comparisons between the 1.8 and 2.5 before Dave, I'd be interested to see the ignition table for one. If you're familiar with them do you know if the pistons are interchangeable? I've seen liners being sold for 1.8 or 2.5. As for getting the factory ignition times it sounds like you will have to talk to the standard computer? I was hoping there would be something like a piggyback ecu that you could wire in to the crank/injector/coil and record the map as you drove, but googling hasn't brought up much.
I don't know much about talking to factory ECUs but it sounds then like they should offer some basic information on a standard protocol and one of those may or may not be the ignition timing in real time?
What kind of software would you need to access the computer, would something like http://freediag.sourceforge.net/ work?
I don't know much about talking to factory ECUs but it sounds then like they should offer some basic information on a standard protocol and one of those may or may not be the ignition timing in real time?
What kind of software would you need to access the computer, would something like http://freediag.sourceforge.net/ work?
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