johnbull
Expert Class
Posts: 314
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posted October 09, 2012 09:03 AM
LM2 data logger on ZX14 engine
Does anybody know where to take a good signal to log revs on the LM2 data logger on a ZX14 (2006/2007)
I am using a PC5 and I noticed that the software of the PC5 gives you a perfectly reliable tach display but on the LM2 I just cant get a smooth rev signal. I have tried taking it both from a coil and from an injector. I have also tried putting a variable potentiometer in between as the LM2 manual suggests under trouble shooting but rev signal still goes crazy.
Anyone know how to solve this?
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John Bul Racing. Malta.
  
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Adams Performance
Parking Attendant
Big Bore Long Stroke
Posts: 19
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posted October 09, 2012 09:15 AM
use your fuel injector wire. Try that and see if the signal is better
Garron Miller
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Coby Adams
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johnbull
Expert Class
Posts: 314
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posted October 09, 2012 09:30 AM
I have already tried the injector wire. Signal is still crazy.
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John Bul Racing. Malta.
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1badzx12r
Needs a life
Posts: 8321
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posted October 09, 2012 10:56 AM
 Edited By: 1badzx12r on 9 Oct 2012 18:57
quote:
I have already tried the injector wire. Signal is still crazy.
IDK if this will help but i always had to ground to the same source i was getting a signal from ..like if i used a injector wire i had to ground to same injector not to the battery or frame
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http://www.youtube.com/watch?v=S06nIz4scvI
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Oz Booster
Expert Class
Posts: 230
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posted October 09, 2012 12:24 PM
Getting the same thing from a dl32 , erratic signal from the coil ,and rpm limits when from an injector at higher DC
1 badzx12r so you picked up on the power and inj switched gnd ??
i'm wondering if there is an induced voltage i am reading from the coil wires all running parrallel
and had considered twisting the wire pairs ??
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Ozonkiller
Expert Class
Posts: 350
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posted October 09, 2012 08:42 PM
Cam position sensor. Been using it for years on my '06 with zero issues
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CajunBoyz
Zone Head
Posts: 702
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posted October 10, 2012 01:07 AM
quote:
Cam position sensor. Been using it for years on my '06 with zero issues
Is the CPS is where you saying to tap into for a clean rpm signal???
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"Cajun Boyz with Bad Ass Toys"
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johnbull
Expert Class
Posts: 314
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posted October 10, 2012 01:15 AM
Will try cam position sensor and let you know how it goes. Tnx
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John Bul Racing. Malta.
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tuusinii
Pro
Posts: 1031
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posted October 10, 2012 03:17 AM
Do You have the newest firmware on Your LM2? Also adding capasitors and diode to the power connection helps. Also make sure You have good grounding.
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Ozonkiller
Expert Class
Posts: 350
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posted October 10, 2012 01:05 PM
Yes, the cam position sensor can be used of an RPM signal. It will read half speed, but there are settings in the setup wher you can deal with that.
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Oz Booster
Expert Class
Posts: 230
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posted October 10, 2012 01:30 PM
Sounds good, will try it too
Thanks 
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johnbull
Expert Class
Posts: 314
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posted October 10, 2012 02:41 PM
Taken it from cam signal but still messed up.......now updated the LM2 firmware and it is now fine.
Thanks for all the suggestions
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John Bul Racing. Malta.
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