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S_AUJP wideband logging?

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Old Dec 21, 2008 | 11:55 PM
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S_AUJP wideband logging?

i did try a search but only 2 times since i'm not even sure what to type in.

here's what i got... lc1 output set to 0 to 5v on pin A3. raw input bit checked. along with the one that is for pin A3. none of the others are.

so i've got a prominator and can switch between bins. so i keep a known good bin on chip1 with closed loop enabled so i can get home if need be while tuning. now here's the weird thing, when i'm on my open loop bins i'm tuning and trying to log, the A/F displaying is a full 1.0 richer than what logworks shows me. but when i switch to bin 1 and closed loop changes the blm's both A/F displays then match dead on. its doesn't seem to be a look up table slope thing because when its right, its right thru the full swing. i have output 1 as a norrow band sim hooked up to the normal o2 input. so i'm pretty sure i'm not running into what i've read about a wb and narrow band not agreeing.


also can someone point me towards a term to search for how the wideband logging works. because when i try to check the A/F without the car running. the raw count and A/F display don't move in tunerpro but the logworks display shows say 14ish, or whatever left over gas there is. should i be seeing something in tunerpro, or does it need more date points to make a cal?


i'm confused. i have a clean install of the LC-1 with none of the ground offsets or freaky things like error codes you read about. my lm1 is almost 7 years old and on the same sensor, the lc1 is almost a year old on a daily driver. i have everything run and grounded per the message board on their site and have never had any trouble with either my lm1 or lc1. so i have a feeling its something weird going on in tuner pro.


guess i could hook up the volt meter and see if the voltage on pin A3 changes with i switch bins.


or try going with the 1 to 2v setting cause i'm guessing that just dumps the raw voltage into the log. but i figured 0-5 would have better res.


sorry for the long post.
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Old Dec 23, 2008 | 06:46 PM
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From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Re: S_AUJP wideband logging?

Originally Posted by ???
when i'm on my open loop bins i'm tuning and trying to log, the A/F displaying is a full 1.0 richer than what logworks shows me. but when i switch to bin 1 and closed loop changes the blm's both A/F displays then match dead on. its doesn't seem to be a look up table slope thing because when its right, its right thru the full swing.
That is odd.
What are the differences in the OL to CL bins?
Might shed some light on the problem.

when i try to check the A/F without the car running. the raw count and A/F display don't move in tunerpro but the logworks display shows say 14ish, or whatever left over gas there is. should i be seeing something in tunerpro, or does it need more date points to make a cal?
The routine that reads the A/D is not active until engine is running.
I've wanted to make that different for a while but never got to it.
Makes it difficult to check for good sensor or voltage offset problems IMO.

guess i could hook up the volt meter and see if the voltage on pin A3 changes with i switch bins.
Good idea just to see ????

...or try going with the 1 to 2v setting cause i'm guessing that just dumps the raw voltage into the log. but i figured 0-5 would have better res.
Stay with the 0-5V range unless it is proven you need to change.
Resolution = good
Jp
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Old Dec 24, 2008 | 08:15 PM
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Re: S_AUJP wideband logging?

thanks for the reply.. after some more time with it... I don't know what I have going on here. those 2 bins I first saw it on where the same other than CL enable temp. now even the same bin will change as I drive around sometimes it will match, mostly its a point richer and tonight I was going thru a TP log I had exported to an excel file and durning a 100% tps part the map voltage was high 4v's and the kpa was in the 30s. which makes no sense, so I went back and replayed the log in TP and kpa was 95ish as it should be. so at this point I don't trust anything. I'm tuning the ve off the blms and wot off logworks and guessing at the rpm points. I will put put a volt meter on it, just gotta pull stuff apart to get to the wires and find a way to hook my leads up so the make good contact but not cut stuff up.
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Old Dec 29, 2008 | 03:30 PM
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Re: S_AUJP wideband logging?

i got frustrated and threw on a 3 bar map and loaded up code 59 to see if that wideband input worked right with it, since it uses the same input voltage and it seems dead on everywhere. well i do have a .01 af offset but i don't think that matters for my level of tuning.

i have no idea why, or what i'm doing worng with $8D but i'm going to play with 59 for a while. maybe i'll learn something before going back to 8D
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