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LC1 bugging out???

Old 07-25-2006, 10:37 PM
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Default LC1 bugging out???

So i finally installed my LC1 last week and it ran fine the first hour I used it... Finally found out just how rich Im running and it wasnt cool (28.9). Didnt really have time to tune so I waited a couple days till I had time. Hooked up the lappy and ran logworks... everything ran fine till i hit the gas. The gauge screen started flashing grey and would lock up on 18.7. When I take it out on the street it starts to flash between the grey(dead) and green(running) gauge so i cant get an actual reading. Also when I datalog from the ecu, uber reads 18.9 steady. Im thinking its just electrical noise or a bad ground but just a guess. Anyways ild like to get this figured out ASAP so I can get my ---- box tuned right, a full tank a week isnt cheap.
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Old 07-25-2006, 10:45 PM
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Default Re: LC1 bugging out???

Also, I have the white and green LC1 wires twisted together and ground at the same point(black, ECU Ground). LC1 power is from the ECU power line(yellow/black). Also tyring to figure out how to program the LC1 to use an narrow band a/f gauge as a display... damn im lost.
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Old 07-26-2006, 08:52 AM
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Default Re: LC1 bugging out???

Originally Posted by Boosted_StinkyNuts
Also tyring to figure out how to program the LC1 to use an narrow band a/f gauge as a display... damn im lost.
http://www.innovatemotorsports.com/f...ead.php?t=3879

dont know about your readings...is it bouncing between AFR and %O2? green and white together is okay...http://www.innovatemotorsports.com/s...C-1_Manual.pdf
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Old 07-26-2006, 06:21 PM
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Default Re: LC1 bugging out???

Free Air calibrate it again, and try running it straight off the battery. I had the same problem running from the cig plug. Redid most of the wiring, and used alligator clips to attached directly to the battery, and my seperate ground is on the T-stat housing in the engine bay, just make sure you hit it with some sand paper and get bare metal.

Analog output 1 is the yellow wire, and is setup as a narrowband simulator out of the box. The instructions for wiring it up with your stock o2 are in the LC1 manual.

And 28.9 isn't rich, it's lean.
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Old 07-27-2006, 12:21 AM
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Default Re: LC1 bugging out???

ya thats MAD lean. lucky you didn't burn her up. unless that was on decell. but seriosly 18.9 is way to lean too. try for 14.7 on cruzin and depending on boost or na 13.2 to 11 afr have fun with the tune. you will get the hang of it quickly
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Old 07-27-2006, 01:16 AM
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Default Re: LC1 bugging out???

My car barely ran at 20:1.

Now it's at 13:1 and it idles rock solid. I'm gonna fine tune it a bit more tomorrow and work on the rest of the vaccum map.
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Old 07-27-2006, 06:32 PM
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Default Re: LC1 bugging out???

Didnt catch that.... edit: I ment lean. Im getting crazy detonation at 3300 under boost. Only been running 5 pounds till I can tune but I still cant get the bitch to read right. When I datalog through uber, O2 reads 18.9 and doesnt move. In logworks, its reading between 24-44 when it does read(numbers are green) and 20.9 when the numbers turn gray? The decimal point still remains green though, cant figure it out. No mater how much fuel I add or subract, AFR doesnt change. I redid the wiring again and recalibrated it but cant solve the prob. Im wondering if it might be the sensor but im not getting and errors
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Old 07-27-2006, 07:03 PM
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Default Re: LC1 bugging out???

Here are sum pics... sorry for quality but my cell was handy...

SENSOR READING...


SENSOR GETTING GAY... Notice decimal is green but numbers arent and wheres the needle?
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Old 07-28-2006, 01:24 AM
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Default Re: LC1 bugging out???

I have had that problem before. Try reprogramming the voltage slopes. Just open up the LM programmer, with the key on and you wideband powered up, and select gasoline 14.7:1 in the forst page. Go to one of the tabs for the analog uotputs and select restore factory defaults. After that press the program button. The status LED will go off an then start flashing IIRC. After that turn the key off, or disconnect the power to the wideband, and wait for about 20 seconds. Turn the key on and watch the status LED. It should blink at a steady rate until the heater is warmed up then it will be on staedy. After this open up LM Programmer again and check to see that your settings were saved correctly. If the setting s were saved correctly then close out LM Programmer and open up Logworks and se what happens.

Good luck. The LC-1 can be a PITA but it really is a great little unit once you figure it out.
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Old 07-28-2006, 06:13 PM
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Default Re: LC1 bugging out???

Can you elaborate alittle more on "flashing IIRC" I dont have this unit yet, but want to buy it badly for the price obviously... I want to know what to do when it flakes. Can you be more specific or dumb it down for a dummy like me? Thanks! Pictures are helpful as well, I never did finish figuring out what happened to CLifford the Big Red Dog!
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