No not directly, but like most other aftermarket ECU's there's alternative ways to read knock. It'll be hard to find any aftermarket ECU that would actually tick all the boxes using all the factory sensors, but the Haltech does all except for the OEM knock sensor. Actually no other aftermarket ECU that I know of, not even Motec has dedicated knock sensor input/correction and all require an aftermarket alternative like a 'Knock Box' to read engine knock.
You have to remember that once you start modifying an engine with forged internals and big cams etc it starts to make all sorts of internal noises and the stock knock sensor could start sending off false readings which is what you DONT want. On the other hand, if you're experiencing knocks because of a bad batch of fuel you'd want to have some form of safety feature to retard timing as a precautionary measure (or good ears to identify when to lift off the throttle lol).
In a perfect world a knock sensor isnt even required. What's more important is a good tuner who knows what he is doing! e.g. Say if the tuner tunes your car to optimum levels on 98 pump, he should then back off a little or setup a 2nd map to account for the possibility of you getting some bad fuel from a dodgey servo for instance.
I have heard of some people using an aux input for a knock sensor on Haltechs to trigger a secondary map and a quick sanity check on the Haltech forum confirmed a couple of methods - the second method is from MitsiMan, owner of RPW and tuner of many a Mitsubishi in Western Australia. He's a wealth of information on tuning Haltech ECU's on 4G63's:
* The PS2000 cannot natively read knock, but you can get creative and assign the knock sensor to an aux input and use that aux input to switch to the secondary map of the dual map setup, which is what I plan on doing. I will probably have that map setup to retard the timing by ~5 degrees across the board if knock occurs.
* Mitsiman - You can also set the auxiliary input to the equivelent of a ignition fine trim module, and as the voltage level increases, it retards progressivly more knock out. We did this successfully years ago but since we started tuning with a knock box on the dyno, we haven't had any issues with knock on the road. I still setup a duel map for the custoer with switch on dash with a low octane tune if they hear any pinging if they got a bad batch of fuel.
Some 4G63 EVO specific threads about knock control you may want to read:
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http://forums.haltech.com/viewtopic.php?f=10&t=2377&hilit=evo+knock#p10420
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http://forums.haltech.com/viewtopic.php?f=10&t=2782&hilit=evo+knock#p12384