olie05 Posted August 16, 2007 Share Posted August 16, 2007 As the title says, the car will fire up but will not stay running. The setup is: MSNSE 029v V2.2 board HEI 4pin module driving coil 12v to coil, with proper pull up resistors on module and distributor n/a 280z basically stock (electrically) with turbo distributor and 240sx TB Here is a screen capture of the datalog of what I am talking about: Hooked up a timing light and it looks like i'm getting consistant spark... I'm thinking it has something to do with the fueling... Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 16, 2007 Share Posted August 16, 2007 looks like what mine was doing with my HEI module... hmmmm Yeah i still haven't fixed it yet Olie. I found my pickup went out on my dizzy, put in a new one and haven't gotten to test again since then. Should get to work on it some tomorrow possibly. -Ed Quote Link to comment Share on other sites More sharing options...
olie05 Posted August 16, 2007 Author Share Posted August 16, 2007 I have a spare vb921 around that I might just wire in tomorrow. Its been a day full of cranking and nothing. Quote Link to comment Share on other sites More sharing options...
mpcapps Posted August 16, 2007 Share Posted August 16, 2007 Have you tried adjusting your after-start enrichment? i'd also play with the trigger angle settings; if you're way off the timing might be close enough to kick it over once, but when it starts adding in timing after start, the timing is too far out to keep the engine going. Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted August 16, 2007 Share Posted August 16, 2007 Take your HEI to NAPA and have it tested. It is ridiculous how ESSENTIAL the HEI module has to be grounded well or it will cook. I had one die because the key was in the "ON" position and I unbolted it from its ground. When they die they give off spark for a little bit then just die off. Then eventually they don't do anything. Mario Quote Link to comment Share on other sites More sharing options...
olie05 Posted August 16, 2007 Author Share Posted August 16, 2007 I swapped out the HEI for a new one ($15 autozone) And it did the same thing, so I went to a VB921 setup, and I still have the same problem... I don't think its the ignition anymore. I can hear the injectors firing at all times, so I guess the next thing to check would be fuel pressure. Quote Link to comment Share on other sites More sharing options...
olie05 Posted August 17, 2007 Author Share Posted August 17, 2007 The car idles now. The things that were changed were the injector constants, req fuel was too low, and i messed with some of the injector settings to get it to run right. VE bins at idle were too low as well. now to get it DRIVING! --edit-- also I'm much happier with the VB921 coil driver. I'm having less random sparks after the engine shuts down. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 21, 2007 Share Posted August 21, 2007 Olie... are you triggering of the VR on the stock dizzy? Quote Link to comment Share on other sites More sharing options...
olie05 Posted August 21, 2007 Author Share Posted August 21, 2007 Olie... are you triggering of the VR on the stock dizzy? No way. I'm using the 83 turbo optical dizzy. I have a spare for you if you are interested. Just get a shaft and you're in business... no more headaches. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 21, 2007 Share Posted August 21, 2007 No way. I'm using the 83 turbo optical dizzy. I have a spare for you if you are interested. Just get a shaft and you're in business... no more headaches. Sep29th I'll be heading down to Galveston for a beach meet, If I don't make it your way before then I'll defn' hit you up at that time. I'll take that tranny off your hands too if ya still got it lol. Quote Link to comment Share on other sites More sharing options...
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