Logging with EFILive and LC-1
11-04-2006, 09:57 PM
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Logging with EFILive and LC-1 I can't seem to get EFI Live to show a gauge or chart the data from my LC-1. It does receive the data through the external analog input, and I can watch the voltage change on the 'Data' screen. What am I doing wrong?
11-04-2006, 11:04 PM
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You need to select three pids to see everything. You seem to have External Analog Voltage 1 or 2 selected. Select the corresponding Base Efficency Numerator (1 or 2)-LC1 and Wide Band AFR (1 or 2)-LC1. If that doesn't do it show us a screen shot of your PIDs selection.
11-06-2006, 05:26 PM
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Yep. That was my problem. But, now I have another...
The sensor worked perfectly for a couple of days, but last night it stopped working. The funny thing is that it will work for a second or two when I first crank the car, but stops after that. Any ideas?
The sensor worked perfectly for a couple of days, but last night it stopped working. The funny thing is that it will work for a second or two when I first crank the car, but stops after that. Any ideas?
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11-07-2006, 12:19 PM
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Sounds like the error 08 sensor timing error. I'm don't know how to check this with an lc1 though, the lm1 tells you the error. The fix for the lm1 is to get a new sensor. If the sensor plugs are the same you could probably hook the sensor to an lm1 if you know anyone that has one.
11-07-2006, 05:10 PM
#11
Originally Posted by AzzHauler
Sounds like the error 08 sensor timing error. I'm don't know how to check this with an lc1 though, the lm1 tells you the error. The fix for the lm1 is to get a new sensor. If the sensor plugs are the same you could probably hook the sensor to an lm1 if you know anyone that has one.
11-07-2006, 06:19 PM
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I don't know what the output voltage shows, but when I had sensors go bad it would work for a minute or 2 after starting then show an error.
11-08-2006, 05:41 PM
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OK, I messed with it for a little while just a minute ago. Here's what I got...
I re-calibrated with no change of performance. But while messing with it, I realized that the sensor reads correctly while warming up, then goes off the charts. Any opinoins on what is up with the unit? Is the LC-1 bad, is the sensor bad, wiring?
The sensor is installed about 1ft in front of my cut out. Could I have ruined the sensor by running with the cut-out open? It worked fine before the Thunder Racing track day (I made about 20 passes with the cut-out open).
I re-calibrated with no change of performance. But while messing with it, I realized that the sensor reads correctly while warming up, then goes off the charts. Any opinoins on what is up with the unit? Is the LC-1 bad, is the sensor bad, wiring?
The sensor is installed about 1ft in front of my cut out. Could I have ruined the sensor by running with the cut-out open? It worked fine before the Thunder Racing track day (I made about 20 passes with the cut-out open).
11-09-2006, 10:55 AM
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i've heard a lot about the lc-1 having serious issues just like yours. I just bought one from a guy on the board NIB, I"m thinkin about selling it and getting a PLX SM-AFR.
you may check the voltage drop from your tap into the ASR to the actually lc-1 controller, could be enough to f it up
you may check the voltage drop from your tap into the ASR to the actually lc-1 controller, could be enough to f it up
11-09-2006, 11:29 AM
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This sounds like a heater ground issue. You said you were using the ASR switch for a source correct? I take it you used the ASR ground for the heater ground? If you did, you probably fried your Digital to Analog Output converter (DAC) from the LC-1. Now the classic question is/was/will be, but it worked for a little while, why not now? Well, the thing is that Heater ground is pulling alot of current and things like the starter can back feed current thru it at startup. The DAC can only take so much of this abuse before it will die. A quick way to check to see if this is the case is to check the o/p voltage from the analog out. First go into the LM Programer program and force the analog out to put out a flat 5 volts and check with either a voltmeter or EFI LIve or Hptuners to see what is has. If it is zero then I am sorry but it is done. The digital out (serial) will be fine. You can salvage the LC-1, get a XD-1 gage and use it that way.
11-09-2006, 12:38 PM
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I set it to 5 volts across the board and only got about 2.5 back (reading using EFI Live). When I use Logworks2 the guage starts off telling me I have an AFR of about 12:1, then goes up to the mid 20's:1. So the digital out isn't reading correctly either. I will move the grounds later this evening. Where is the best place to ground the system?
Last edited by mwill15; 11-09-2006 at 01:13 PM.