Zmanco Posted October 25, 2011 Share Posted October 25, 2011 (edited) You can use an injector flow tester to measure flow at a variety of PW, plot on a graph of flow vs. PW and use a best-fit to see where the line instersects the zero flow axis. That's the dead time. There's a youtube video of one of the developers running this test. I'm not a fan of spraying gasoline in my garage, so went with my poorman's workaround at idle. Another way to do it is with an oscilloscope and current probe. I have the scope, but high quality current probes are expensive so that wasn't an option. Edited October 25, 2011 by Zmanco Quote Link to comment Share on other sites More sharing options...
skylinedriver59 Posted October 28, 2011 Author Share Posted October 28, 2011 I finally got my innovate LC-1 wideband i will be installing it hopefully tomorrow. but I have a quick question, when using the wideband does it have to be plugged in to the serial port on my laptop or just as long as the wideband analog out put 1 or 2 is wire to the megasquirt o2 input wire? Quote Link to comment Share on other sites More sharing options...
Zmanco Posted October 28, 2011 Share Posted October 28, 2011 I ran the LC1 straight to the MS and used one of the gauges in TS to show AFR. Not sure why you would want to log the LC1 output separately unless you were troubleshooting it. Quote Link to comment Share on other sites More sharing options...
skylinedriver59 Posted October 28, 2011 Author Share Posted October 28, 2011 So you don't use the wideband 2.5 mm output db9 serial adapter? Quote Link to comment Share on other sites More sharing options...
Zmanco Posted October 28, 2011 Share Posted October 28, 2011 So you don't use the wideband 2.5 mm output db9 serial adapter? No Quote Link to comment Share on other sites More sharing options...
skylinedriver59 Posted November 5, 2011 Author Share Posted November 5, 2011 i finally got around to spend sometime on my Z and I did the whole plot a graph thing to find the injector dead time. I came up with a 0.3ms dead time. I also installed my wideband but its acting funny. I calibrated based on the instructions that came with it but I think it reset it self when the battery gave out. So now I have a question does the o2 get un-calibrated when it loses power? Do i have to take out o2 and re-calibrate? Thanks Quote Link to comment Share on other sites More sharing options...
skylinedriver59 Posted November 5, 2011 Author Share Posted November 5, 2011 Now that I worked out and figured out my dead time where do I input that value? Quote Link to comment Share on other sites More sharing options...
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