Quote:
Originally Posted by Hoobz
A question;
If it was 'just' the signal from the wheel sensor causing an out of expectation with the programming parameter/algorithm (and then a resulting malfunction), couldn't a micro controller be used to intercept the wheel sensor signal, process it by the 1.1(example of a ratio change), then outputting the original sensor signal by the 1.1(still only an example) changing the signal going to the ECU TCU? Fixing the issue?
Or am I missing something?
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I cannot see why that would not work, except it would throw out the OBD speed measurement. I'm not sure the wheel sensors are linked directly to the TCU. In fact, I'm not sure where they are physically wired to. The primary function of the wheel sensors is for the ABS, so I would expect them to be connected to this system. The TCU could be getting it's data via the bus system.
I should see about buying one of the new DRB-3 micro-pods. They are down to a couple of hundred now for the knock-offs. I have read that you can set the diff ratio via DRB-3. If so, it is much less "fun" but a far simpler solution.
BTW - Just because I know how to dismantle, solder and reassemble the TCU, don't assume I know how to hack one. I have not tried, but I am not confident I could. There are often several layers of protection programmed into these devices.