Injector pulse width in Datamaster

kbbeckius

New member
I have been checking out my latest DM files and I've noticed something strange. When you graph BPW, there are some anomalys in the graph. Datamaster seems to get some odd peaks and valleys. I'm guessing from bad data?? Because the graph simply plots what the data is. I thought, well mabye it's just my truck, but I've downloaded other files and this phenomena seems to occur in all Dm files!!! Random bits of data which doesen't fit in the normally smooth graph. See the graph below for some examples, look where the cursor is, the injector DC is almost 170%.

DMss1.jpg
 

Maxtor

New member
I would say the data at that point is erroneous - did Datamaster flag a "data error" at that point? I have seen the same thing on some of my runs as well - I usually ignore this data. Possibly a bad ground, bad ALDL connection, etc.... I had another Sy that ALWAYS had trouble communicating with Datamaster and would flag data errors throughout a run. There was a thread on here a while back about it.

If Datamaster isn't registering a data error, I'm not sure why the spike would occur.
 
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