supershanesta Posted January 2, 2018 Share Posted January 2, 2018 Hello All, I am working on my Datsun 240z with an l28et swap. I have successfully wired everything besides the coil and the dizzy with the coil being my next project. I have installed the Bip and followed the instructions on DIY's site as follows. (everything else is normal wiring) Remove the jumper from JS10 to IGN or the center hole of Q16 (if exists) Jumper IGBTIN to JS10 Jumper IGBTOUT to IGN (V3.0 only) If you do not have a BIP373 transistor in the Q16 slot, install it. I am in TS trying to run the spark output test and get no spark. I have the test setup as follows... -12 volts to coil from relay with 15 amp fuse - 36 wire to negative - stock 240z coil (does use ballast resistor normally but am not using it in this test) - plug wire on coil to spark plug -spark plug grounded to chassis I have tried.... - switching output from JS10 to D14 (still confused on this) - plugging in my megastim and testing spark (LED lights up with either JS10 or D14) - checked volts on coil in car when doing test at 2ms intervals (8-9 volts) After more research I have changed the wiring as follows to follow the ms2extra guide... BIP373 (marked as 30115) needs to be installed in Q16 with a mica insulator. - Jumper IGBTOUT-IGN. - Connect a 330R 1/4W resistor between IGBTin and the top of R26. - Ensure R57 is absent. - Ensure R43 is fitted or jumped. I changed the ms2 settings as follows... - Set Spark A to D14 Spark plug wired the same. - plug to spark plug ground wire from chassis wrapped around it. Results are the same. - getting 9 volts with volt meter on pos to neg of coil when testing as 2ms interval - getting 12 volts with volt meter on pos of coil and neg on body. Questions I have... Which output should I have? JS10 or D14? Why would I be getting low volts on coil during test? This must have to do with resistance? Should I be getting 12v with key in start when not in test mode? Sorry if these questions are stupid. I am still a little confused on some of this and want to make sure I am testing things correctly. Thanks for you help, Shane Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted January 3, 2018 Share Posted January 3, 2018 (edited) The mods in that picture are set up for D14 spark output. Please be sure your tune is configured to match. Edited January 3, 2018 by Matt Cramer Quote Link to comment Share on other sites More sharing options...
Chickenman Posted January 3, 2018 Share Posted January 3, 2018 If you originally installed the BIP373 with no Mica insulator ( you seen to infer that you added the Mica insulator later on ) then you may have burnt it out. Get another one and install with Mica insulator. They're cheap enough. Quote Link to comment Share on other sites More sharing options...
supershanesta Posted January 3, 2018 Author Share Posted January 3, 2018 I had the bip already installed with mica. After reloading firmware and changing the wiring it is now working. Thank you for your help! Quote Link to comment Share on other sites More sharing options...
seattlejester Posted January 3, 2018 Share Posted January 3, 2018 Please also insulate the resistors. Or tape them up at least. One big bump and I can see the components shorting. Quote Link to comment Share on other sites More sharing options...
supershanesta Posted January 3, 2018 Author Share Posted January 3, 2018 SeattleJester, I have taped them up after i took the picture. I know that could make this megasquirt megadead.. Thanks for that advice! Shane Quote Link to comment Share on other sites More sharing options...
seattlejester Posted January 4, 2018 Share Posted January 4, 2018 Ah, for our benefit then, carry on. Quote Link to comment Share on other sites More sharing options...
Chickenman Posted January 4, 2018 Share Posted January 4, 2018 Small diameter heat shrink tubing makes a nice insulating sleeve for resistor leads. Much easier to install than tape as well. If you need tuning help, give me a PM. I do remote Tuning and can set you up with a good Baseline Tune. Quote Link to comment Share on other sites More sharing options...
softopz Posted January 14, 2018 Share Posted January 14, 2018 are you running the DIY trigger wheel it will make a difference in how you set it up. I imagine its not since you are only following those instructions based on stock wheel. Also from what I see IGBTOUT to IGN is not jumpered you need that. In terms of power at coil you are suppose to get battery voltage at coil positive. Secondly please tell us how your distributor is wired. Thirdly I personally set all my board to JS10 for ignition out ( i dont know why tuner studio recommends d14 spark out) maybe bigger board traces. Quote Link to comment Share on other sites More sharing options...
Chickenman Posted January 14, 2018 Share Posted January 14, 2018 I've been in contact with Shane. He apparently got it fixed. It was those darned resistor jumper leads. He went back and re-did them with shrink tube, touched up a few solder joints and I think reloaded his Firmware. Anyhoo.. it goes Sparky, Sparky properly now. Shane and I are scheduled for a Remote Tuning session Sunday morning. D14 out seems to be one of those quirks in Tuner Studio that has never been updated. Older Instructions used D14 but it's been JS10 for a long time now. Used MS ECU's are " Like a box of chocolates. You never know what you are going to get " Quote Link to comment Share on other sites More sharing options...
supershanesta Posted January 19, 2018 Author Share Posted January 19, 2018 I would just like to express my thanks for Chickenman's help throughout his whole process of making sure my wiring was correct to getting the car tuned and running. He went above and beyond to help me sort things out (we have over 50 emails back and forth ) and I would recommend his help to anyone who needs a good baseline tune and some help understanding how tuner studio works. After 2 calls with him, my car is running well! I would highly recommend contacting him. Quote Link to comment Share on other sites More sharing options...
HuD 91gt Posted January 19, 2018 Share Posted January 19, 2018 +1. With a brain like an encyclopedia he's a great and knowledgeable helping hand in the community that's for sure! Quote Link to comment Share on other sites More sharing options...
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