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LC-1 question

Old 09-29-2007, 04:27 PM
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Just installed and hooked up the LC-1 to my 94-95pnp. I'm guessing that I missed something somewhere because the display shows 14.27 a/f no matter if it is idling or driving with different throttle positions.

I set the LC-1 to 0 volts for 10:1 5 volts for 20:1

In the configuator, I selected the innovative_0_5linear-- Innovative PLX 0-5V 10-20:1afr. I selected this one because that seemed to match what I set the LC-1.

in the basic settings/ego control I set it to wide band and set the ego switch to 2.35 (what the chart on the lc-1 showed was 14.7

What did I miss or do wrong?
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Old 09-29-2007, 05:05 PM
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try a free air calibration again. what's the reading on MegaTune before the car's started? also, did you wire an LED light to it? that might indicate whether it's on or not.
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Old 09-29-2007, 05:11 PM
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last time the engine was running the LED was blinking.

I shut it off for a few minutes waiting for someone to reply. We restarted it and the LED is on steady and now it looks like it is reading right...

about 13.2-4 at idle.

not sure what the issue was or is.
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Old 09-29-2007, 05:27 PM
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What should it read when the engine isn't running?

If I switch on the ignition with out the engine running, the sensor is reading 14.7 after the warm up period when the sensor first turns on.. that doesn't seem right to me. Do I need to pull the sensor and do another fresh air calibration?
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Old 09-29-2007, 05:50 PM
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pulled the sensor, recalibrated it and put it back in.

now it reads full lean if the ignition is on (with out the engine running) after the sensor warms up.

with the engine idling it reads in the 14's.

I guess I'm good to go, time to pull the MAF.

Last edited by GTS Miata; 09-30-2007 at 01:08 PM.
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Old 09-29-2007, 06:01 PM
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Originally Posted by GTS Miata View Post
pulled the sensor, recalibrated it and put it back in.

now it reads full lean if the ignition is off after the sensor warms up.

with the engine idling it reads in the 14's.

I guess I'm good to go, time to pull the MAF.
Sometimes mine reads full lean before starting after warmup, sometimes it reads different, maybe it depends on how long its been since the engine has run? or maybe i just need to do another cal.
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Old 09-30-2007, 01:09 PM
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reading through the LC-1 manual again, it definitely needs to be recalibrated every few months. I think I accidently hit the button and it recalibrated while in the exhaust with the engine running, causing my issues earlier.
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