Category: Caterham Blog
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ECU Diagnostics – part 10 : Decoding EC2 Files
Post Views: 1,067 Now we need to start proving some of our theories about how Easimap is actually talking to the ECU. And it seemed to me that if I was going to prove anything then I’d need to pass a lot of data through any theory I came up with, and that meant writing…
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ECU Diagnostics – part 9 : The Easimap Protocol Theory
Post Views: 1,213 Ok. so we’ve set ourselves up to be able to look at what is going on with a Caterham diagnostics port, we’ve talked a bit about the theory of what we might see from the port and we’ve also seen that Easimap talks to the ECU using a higher level protocol called…
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ECU Diagnostics – part 8 : Easimap uses ISOTP (sort of)
Post Views: 1,311 Ok, that’s enough of the theory about mapping. Lets get back to what Easimap is doing when it talks to the car. When we left this subject last we had got to the point where we could see what Easimap was sending and receiving on the CAN bus, but we didn’t know…
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ECU Diagnostics – part 7 : ECU Maps and Mapping
Post Views: 1,657 People often talk about “mapping” a car. When they do that they’re usually interested in one or more of three things: To increase its performance Improve its fuel economy Improve its drivability So what is mapping? In technical terms a map is a translation, or conversion, function that takes an input and…
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ECU Diagnostics – part 6 : Reading Material
Post Views: 1,059 Another quick one, really quick this time… Mark (CTRMint) had been doing his research and had told us about a book he was buying, and I just couldn’t resist… The book isn’t the cheapest of purchases, at least not in the UK. But for me it was well worth it. It took…