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Matt Alexander

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  1. I have an old LEM v4 with unknown history, so we're seeing if we can at least power it up and check for connectivity before we try to put it in a car. I have a USBLink, with the appropriate ribbon cable to the ECU. Applying power and ground to the ECU from a spare, fully-charged car battery. When we plugged in the USB, the computer recognized it, and installed a driver successfully....but I'm unsure if it's correct. I found one post here talking about the driver file, but the link is dead (it's from 2006....). This should, work, shouldn't it? I'm assuming at this point it's a driver issue, anyone have the correct one?
  2. Shoot. As far as I know, this was originally used to control a Subaru EJ engine. I might be back to square one..... Â Â Â Thank you!!
  3. So, I have this old Link LEM v4 in a box that I got in trade for some work years ago, and a '91 Celica GT (5SFE 2.2l) that I'm thinking about turbocharging....  All my googling doesn't show much for standalone use on these. Lots of people turboing them, but most just using a piggyback. Anyone done this? I think the best way would be to use the stock Distributor for the trigger, and then a pair of 2-pole Camry coils for wasted spark. Will the Link recognize the trigger signal?  If I use the Link to control an electronic boost control solenoid, how do I control the idle (The v4 can only control one or the other)? Just by adjust the stop on the throttle plate?
  4. so, I'm helping work on a turbo swap into a '98 Legacy 2.5GT (you'll see a couple questions here from myself and Grayguy, the owner, about it). we've got it wired in, and running. still need to do some tuning. but we're not having any luck with the tach. of course, I didn't actually read the section about the tach in the link manual, so I didn't realize it would be a problem until we got the car started and it didn't work. the stock subaru tach needs a pulse to ground to work. and the LEM G3 (obviously) pulses 12v+. I pulled the cluster out, and re-wired it so that the normal signal wire get's grounded all the time, and the signal wire from the Link is attached to the + terminal on the tach. it was a long shot, but worth a try......well......that didn't work either. I was thinking use a small relay of somesort. wouldn't have to carry any load (just an amp, maybe 2, I suspect). but would have to be very quick, and resistant to wear. but that would be triggered by the 12v+ coming from the Link, to ground the signal wire for the tach. good idea? other suggestions?
  5. factory injectors are sequential. but ignition is waste spark, paired 1/2 and 3/4. I will wire the injectors the same way.
  6. I'm helping a buddy install a LEM G3 into his subaru, and I really like this setup! however, I don't like that it only has 2 injector controllers. this means that the injectors are firing twice as often as before......which might mean a substantial drop in gas mileage! I don't need/want to upgrade to the full-on Link plus system just to get 2 more injector controllers.
  7. I'm wiring a G3 into a '98 LGT (2.5l). I'm wondering how to pair up the injector controls. stock ignition control is 1/2 and 3/4, so I'm wondering if I should do the same with injectors, or 1/3 and 2/4 like the manual suggests. Thanks!
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