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Old 03-08-2008, 10:44 AM   #1
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Default Will the car even run at 4:1 AFR?

So, ive gotten my BEGi S1 installed and the car starts. I also put in 460cc injectors. However, my wideband is reading around 4:1 AFR. Is this even possible or should i be tracking down problems with the wideband? It was reading like this BEFORE i did the turbo install and put the injectors in. So now that im typing this im leaning more towards a setting problem. Anyway, any input would be appreciated.
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Old 03-08-2008, 10:53 AM   #2
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I don't think it would run. IF it did you would have fuel pouring out of your exhaust.
Sounds like you need to check your wb / wiring.
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Old 03-08-2008, 10:55 AM   #3
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yeah, i will have to hook my laptop up to the wideband to see what it says. That way i can find out of it is a MS problem or a wideband problem. Oh, this HAS worked before. It worked for several thousand miles. It stopped working after i had the battery unhooked and i was trying to put in 460cc injectors that i found out didnt work anyway. Could raw fuel on the wideband hurt it?
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Old 03-08-2008, 11:15 AM   #4
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Quote:
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Could raw fuel on the wideband hurt it?
its only raw fuel on a VERY sensitive sensor, whats the worse that could happen?
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Old 03-08-2008, 11:21 AM   #5
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Which wideband do you have? Most won't even read that low.
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Old 03-08-2008, 11:38 AM   #6
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sorry, its the LC-1, i shouldve said that. anyway, i went in and reset all the settings on the wb to factory defaults. Now it is reading 7.4:1 all the time. Im guessing that means that im not getting any voltage from it since that is what 0v is set to.
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Old 03-08-2008, 12:19 PM   #7
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your lc1 config is wrong
take sensor out exhaust and recalibrate at a start
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Old 03-08-2008, 01:45 PM   #8
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lol. if you're running at 4:1, change your oil soon. Wash down the cylinders, scour the walls, and spin a bearing.
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Old 03-08-2008, 04:16 PM   #9
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okay, now the lc-1 stays in warmup mode forever. I let it go for around 10-15 minutes and it was still blinking about 2x per second. Does this mean i have a bad sensor?
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Old 03-08-2008, 10:59 PM   #10
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LOL, another thread about crappy a LC-1. do what i did, sell it and buy a AEM. i am still rocking the same sensor it came with and have ZERO problems, works perfect every time.
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Old 03-08-2008, 11:03 PM   #11
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+1 on the AEM
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Old 03-08-2008, 11:04 PM   #12
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Pretty sure the AEM and LC-1 use exactly the same sensor anyway.
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Old 03-09-2008, 12:28 AM   #13
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Cars usually stall at 9:1. Are you sure the gauge is not reading in Lambda mode? My XD-16 can, but i am not sure about the DB gauges. Either way, a recalibration is probably in order. You need to do it after the car has sat all night though.
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Old 03-09-2008, 12:54 AM   #14
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im stuck with this crappy lc-1 too...same deal...7:4 and it will change occasionally...i pulled the sensor out to calibrate but it blinked forever!!!...then i plugged it in again and same thing...i just dont know whats up?...
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Old 03-09-2008, 03:39 AM   #15
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I got an LC 1 and it also gave me grief

I sorted thr grounds out and that helped and then I sorted out that "little plug" the 2.5mm ear phone type jack
if you got bad grounds or inconsistent grounds or a ground that other devices use the lc 1 is way to sensitive to problems on grounds in my view
the actual sensor is hardly ever the cause of the problems - that little ear phone style terminator is a pain and half the time its plugged into the wrong connection !
read the lc 1 instructions I did and it made a difference the aem is a pleasure in comparision - I am not an instructions kinda guy and I dont think any of us are
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Old 03-09-2008, 03:56 PM   #16
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If you think it's your sensor, you might try a new one. VW dealer will sell you one, they run about $70-80, depending on how nice you are.. The part number is listed on Innovate's forum.
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Old 03-09-2008, 04:51 PM   #17
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Quote:
Originally Posted by richard_ha View Post
Pretty sure the AEM and LC-1 use exactly the same sensor anyway.
nope
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Old 03-09-2008, 06:31 PM   #18
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ive done the open air calibration but i will redo it along with a heater calibration and see where that takes me. I wont be able to do it until the weekend though, work+school=no free time during the week.

Thanks for the help!
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Old 03-10-2008, 09:36 AM   #19
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Quote:
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nope
Yes and no... they're both Bosch LSU sensors, but they used different connectors.
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Old 03-10-2008, 09:52 AM   #20
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Quote:
Originally Posted by wes65 View Post
okay, now the lc-1 stays in warmup mode forever. I let it go for around 10-15 minutes and it was still blinking about 2x per second. Does this mean i have a bad sensor?

do you have the black wire grounded?
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