skirkland1980 Posted December 27, 2012 Share Posted December 27, 2012 The time span of the data log was only about 30-45 seconds. I think the data log is taking about 2 pictures a second. The car runs great hot and cold until the box gets too hot. I'm getting 30* with the timing light. It's set to 'use table'. Thanks Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted December 27, 2012 Share Posted December 27, 2012 (edited) What sort of injectors are you using? The PWM current limiting settings are rather weird. Also, where is the MS grounded? Motomanmike is right that you shouldn't see battery voltage spikes like that. And if you're not sure how the board has been modded for spark output, please post a picture. Edited December 27, 2012 by Matt Cramer Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted December 27, 2012 Share Posted December 27, 2012 The injectors are the dark blue ford cfi injectors, 440cc. All ms grounds go straight to battery neg. The sensors ground to the intake manifold. The voltage spike problem may be because the small red ms power wire goes to the oem fuse box. I'm thinking I may need a better place for ignition. Here is a copy and paste of the email I sent you on Sept. 5th: Hello. My name is Shane. I'm using the ms2 v3.57 in a 1983 280zx non-turbo. It's using the original vr distributor. I have spark output on D14 with the 330 ohm resister and a single bip373. The car runs great until the bip373 gets hot then it starts misfiring. I've tried dwell settings from 2.5 to 4.0 and it still misfires. I've also replaced the bip373 twice and added some more heat sink. I've triple checked to make sure the bip373 is not shorted and has good grounds straight to the battery. I'm not sure what's going on because I have the ms2 v 3.0 that I assembled myself on my own 280zx turbo and have never had this problem. Here is the last email I sent you before you requested the datalog. Sorry I got busy and didn't get around to it: Hi. Last night I spent several hours trying to get this problem fixed. I ended up wiring the jumper with the 330 ohm resister that goes to the bip373 straight to the back side of the 40 pin dip to pin #7. I had it wired to SP1. I haven't been able to find any documentation on where exactly to install the jumper. Now it's not using the spark table and the trigger wizard has no effect. Other than that the car runs great. Attached is my latest msq file. Thanks...Shane Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted December 31, 2012 Share Posted December 31, 2012 Check if the injectors are high or low impedance. Could you post a photo of how exactly the BIP373 is wired up? Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted December 31, 2012 Share Posted December 31, 2012 I'm about 99% sure they are low impedance. I will get a picture and check the injectors with a DVOM when I get home this evening. Thanks again. Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted January 1, 2013 Share Posted January 1, 2013 Picture attached Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted January 1, 2013 Share Posted January 1, 2013 I just ran a new power wire to MS from the battery to a toggle switch to an inline fuse then to MS. I also ohmed the injectors and have 2.0 ohms on all six. Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted January 3, 2013 Share Posted January 3, 2013 I'm going to start a new thread. Quote Link to comment Share on other sites More sharing options...
kerrys914 Posted September 25, 2016 Share Posted September 25, 2016 Anyone know Ben? I have similar jumpers on a MS1 Quote Link to comment Share on other sites More sharing options...
kerrys914 Posted February 19, 2017 Share Posted February 19, 2017 Ben, you around? Quote Link to comment Share on other sites More sharing options...
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