MaTTSuN Posted August 10, 2007 Share Posted August 10, 2007 i did a datalog and sent it to matt cramer at diy he siad he sees a tach spike and maybe try a 1k resistor now everything on my setup seams fine but it wont fire has anyone else had this problem or something close? i did run for a while but now it wont... Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 13, 2007 Share Posted August 13, 2007 Where did you install the 1K? Is it in line with the tach input wire? Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 13, 2007 Share Posted August 13, 2007 What are using for a trigger? Quote Link to comment Share on other sites More sharing options...
MaTTSuN Posted August 17, 2007 Author Share Posted August 17, 2007 i think the 1k is inline with the 12v switched power to the MS i think for the coil trigger like the manual says im using the 81 l28t crank sensor on the front pulley i was just on vacation and i remember i adjusted the cas befor i reloaded a new program after it stopped working im going to try putting it back tonite since i just got back now maybe i put it too far out of range Quote Link to comment Share on other sites More sharing options...
MaTTSuN Posted August 18, 2007 Author Share Posted August 18, 2007 ok i had a chance to move the cas but it did nothing i have no spark at all now it wont even sputter..... did i blow my coil some how? can the CAS on the pulley go bad? it seamed to be working fine intill it stopped working haha kind of running out of ideas ..... Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 18, 2007 Share Posted August 18, 2007 i think the 1k is inline with the 12v switched power to the MS This does not sound correct, can you elaborate on where you have the 1K resistor right now. Also give us a lot more detail of what led up to seeing the tach spike, etc. Quote Link to comment Share on other sites More sharing options...
MaTTSuN Posted August 18, 2007 Author Share Posted August 18, 2007 i have it all wired up through the relay board like the diy site http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_280zx_turbo.htm the resistor is 12v switch power to the dizzys green and black wire the car would sputter at about 500rpm so i did a datalog so matt cramer at diy could take a look he siad everything looked good but there was a tach spike, and maybe i should put a resistor on the tach signal wire ive been on vacation so havent had to much time to try anything i was just wondering if it could be a bad resistor now and no power is getting to the green and black dizzy wire? do resistors go bad? it kind of had spark for a while and sputtered at about 500 rpm but now it doesnt do anything Quote Link to comment Share on other sites More sharing options...
MaTTSuN Posted August 20, 2007 Author Share Posted August 20, 2007 ok i did some testing and reviewing of my msq my tach signal is giving out .01-.02 volts and the resisted 12v switch power to the tach signal is 1.5v so everything is working... i put a new resistor on just for fun the one thing i found that i didnt have befor was the TPS value for flood clear(raw) on my msq it was blank so i put in 216 that seamed to get me some spark but it still didnt run for spark settings on the trigger angle i think i have 56 and the trigger addition at +45 thats the only way i can get it to sputter haha i have my timing light on the #1 and i watch that to see if its sparking and this is the only way i can get it consistently to spark but i have not gone higher like 90s or 100 trigger angle but im not sure what good that will do im happy now that i can get this think to kinda work because it was not working at all before no spark or fuel but now im getting a little of both i think i may be getting enough spark but not enough fuel now not sure how to get it all synced up i took a data log of the last time i tried to start it but i cant upload it on here any ideas on how to troubleshoot this badboy? Quote Link to comment Share on other sites More sharing options...
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