Vincent

Thanks for that. I'm happy to stand corrected as long as I'm learning something. As the FCon is a stand alone unit, then the next question (as raised before) is what does it interface with the ECU about? The reason I ask is that if it's sending and receiving data through the ECU, then would it be theoretically possible to alter the signals it gives the ECU? This would allow me to keep the FCon V, and yet tune the car to my liking through altering the data the FCon sends to the ECU by 'playing' with its chip. Possible? Plausible? Anyone on the forum done it before? Vincent

Hi Guys, Thanks for the replies. Some other info, etc to better inform....... 1. Being a piggy back unit, the FCon apparently works in conjunction with the ECU, so you're right in talking about the level of integration. How intergrated it is I don't know, and again, I'm not too thrilled about sending the car to NSW (BD4s) to find out. I assume it's pretty well integrated as it's running the ignition amplifier, HKS EVC (Series 1), HKS in-cabin AF ratio adjuster/dial, and the engine is very modified (Nismo crank, forged pistons, mostly Tomei engine bits, Apex RX6 turbos, HKS racing intercooler, 280 degree duration cams, solid lifters, etc) 2. The 2 reasons I need the ECU looked at in terms of settings, is that the car (in Japan) has been capable of over 2Bar boost, but here it is lucky to get to just over 1Bar. Also, it is constantly hunting for idle, so it revs between 800 and 1500rpm constantly when standing still. I've checked all the mechanicals (Idle air control, TPS, etc) to make sure that it was the tuning, and they seem OK. It could be a boost leak, but that shouldn't matter too much if I have a MAP sensor, right?? Anyway, I hope this sheds more light on my probs. Any further advice appreciated. Thanks again guys. Vincent

Hi All, My first post on this forum....... .......so be nice! My car is currently running a HKS FCon Pro V (still tuned for Japanese fuel) which I know there is a HKS dealer in NSW that can reprogram it, but I'm not interested in trucking my car up to NSW for them to do it. I'm wondering if anyone has the software for me to reprogram the unit or someone in Victoria (anywhere near Melbourne) that can tune this unit for me. I would just replace it, but every man and his dog has a different opinion on what to use - Microtech, Autronic, Motec, Wolf 3D, etc - and everyone has a good argument why not to use some other unit - Motec = price, Microtech = unreliable, Wolf = too basic, etc. I'm also not too eager to rush out and spend mega-bucks, so I would ideally like to keep the HKS unit. All I want to do with the unit is program it first for a peak dyno figure and qtr mile run, then de-tune it for daily driving. The car is running a MAP sensor (no AFM), ignition amplifier and (as mentoned) tthe HKS unit which is an add-on to the ECU which still runs basic functions like ignition. Any advice appreciated. Vincent