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Old 11-09-2008, 04:58 PM   #1
breezeby
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Default wideband. Help!!!!!

just wondering. What will the number be off by if the sensor is installed after the cat?
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Old 11-09-2008, 05:23 PM   #2
06Limited
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No way to tell for sure. A lot of it has to do with what kind of cat is on the car. Best place for the WB is 8-32" after the turbo but before the cat.
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Old 11-09-2008, 07:57 PM   #3
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It will probably be off.
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Old 11-10-2008, 07:40 AM   #4
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Quote:
Originally Posted by 06Limited View Post
No way to tell for sure. A lot of it has to do with what kind of cat is on the car. Best place for the WB is 8-32" after the turbo but before the cat.
Its a highflow cat
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Old 11-10-2008, 06:12 PM   #5
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Most tuners (and dynos) put a removeable WB02 sensor in the tail-pipe during tuning/logging/dyno. I have compared my LC-1 directly behind my turbo to a WB02 in the tail-pipe and there was almost no difference in actual AFR - however, there was a definate difference in response.

At a constant throttle, AFR is almost exactly the same, a quick stab of the throttle will show the difference in response - and the WB02 in the tail pipe felt about half a second behind.

Saying that, many reputable tuners have and still do tune with the WB02 in the tail-pipe, so it can't be as bad as it is perceived to be - can it?
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Old 11-10-2008, 07:04 PM   #6
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Quote:
Originally Posted by wrxsti.l View Post
Most tuners (and dynos) put a removeable WB02 sensor in the tail-pipe during tuning/logging/dyno. I have compared my LC-1 directly behind my turbo to a WB02 in the tail-pipe and there was almost no difference in actual AFR - however, there was a definate difference in response.

At a constant throttle, AFR is almost exactly the same, a quick stab of the throttle will show the difference in response - and the WB02 in the tail pipe felt about half a second behind.

Saying that, many reputable tuners have and still do tune with the WB02 in the tail-pipe, so it can't be as bad as it is perceived to be - can it?
Yeah I wish someone would just test it after the cat and before the cat. But I guess I am just getting the o2 bung welded on the DP
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Old 11-11-2008, 06:00 PM   #7
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I have tested before and after the cat and have found EXACTLY the following... No difference in reading, but there IS a difference in response time...

Quote:
Originally Posted by wrxsti.l View Post
Most tuners (and dynos) put a removeable WB02 sensor in the tail-pipe during tuning/logging/dyno. I have compared my LC-1 directly behind my turbo to a WB02 in the tail-pipe and there was almost no difference in actual AFR - however, there was a definate difference in response.

At a constant throttle, AFR is almost exactly the same, a quick stab of the throttle will show the difference in response - and the WB02 in the tail pipe felt about half a second behind.

Saying that, many reputable tuners have and still do tune with the WB02 in the tail-pipe, so it can't be as bad as it is perceived to be - can it?
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Old 11-11-2008, 06:24 PM   #8
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Quote:
Originally Posted by breezeby View Post
Yeah I wish someone would just test it after the cat and before the cat. But I guess I am just getting the o2 bung welded on the DP
Make sure to mount it at least a 8-10 inches behind the turbo. Wideband sensors read off and can be damaged when they get really hot. Inovate recommends, with their kits, if you have to place the sensor close to the turbo that you either buy there heatsink bung which is about $90 or make a heatsink out of copper sheet metal to go on the sensor. Overheated sensor are not just a problem with their kits it is a universal issue. You can go to Inovate's website and find the instruction manual for any of their kits. They all have a section about this heat sink.
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Old 11-11-2008, 06:27 PM   #9
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Quote:
Originally Posted by gto7419 View Post
I have tested before and after the cat and have found EXACTLY the following... No difference in reading, but there IS a difference in response time...
Same - perhaps I wasn't clear enough in my post?
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Old 11-12-2008, 08:18 AM   #10
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yeah i think i am getting a bung welded tomorrow on the DP and i am going to put it about 12 inches away from the turbo or maybe a little more but not to far away.

and i just thought that the cat would ruin the sensor that is why i have been asking
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Old 11-12-2008, 06:45 PM   #11
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Mine is in the bung that was already in my dump-pipe. It is only about 6" from the turbo and works flawlessly
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Old 11-13-2008, 08:10 AM   #12
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Originally Posted by wrxsti.l View Post
Mine is in the bung that was already in my dump-pipe. It is only about 6" from the turbo and works flawlessly

yeah you went off subject but that's cool

i was just trying to find out if anyone has tried the wideband after the CAT but i have found out from what people are sayin that it just has a time delay

well saving a little bit of money and time for a time delay if fine with me

and maybe down the road i will end up getting a bung welded on my DP
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Old 11-13-2008, 04:49 PM   #13
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Quote:
Originally Posted by gto7419 View Post
I have tested before and after the cat and have found EXACTLY the following... No difference in reading, but there IS a difference in response time...
I find the same. I have an aps turboback the bung by the turbo is too close for permenent installation. So I have a bung welded alittle farthur down stream. I use the tail mounted innovate mount when i tune on the dyno and if i need the wideband on the street.
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Old 11-13-2008, 11:38 PM   #14
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Based upon the feedback in this thread, it seems like it's just a time delay issue. If that is the case, why not consider installing the wideband in the stock REAR O2 sensor position.

Then run the narrowband output to the stock harness.
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Old 11-14-2008, 08:42 AM   #15
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yep now i have it hooked up and now i can't get it to log or connect to my computer

any ideas?
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Old 11-14-2008, 09:53 AM   #16
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lol, that's always the way. You finally get it installed and it doesn't wanna play ball

A few questions:
1. Are you using the direct serial plug connection - or a serial-to-usb adaptor?
2. Can you connect to it with LM Programmer (the software comes with the LC-1)?
3. Is it set to "gasolene"?
4. If all the above are ok, what version of RoMRaider are you using to log with?
5. In the RomRaider Logger, did you first go to the "plug-ins" menu and select the LC-1 and it's com port?
6. If yes, did you then select the LC-1 parameter to log it?
7. Try selecting/deselecting the LC-1 parameter a few times, sometimes it takes a couple of turns.

If you did all those things it should work.
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Old 11-14-2008, 10:00 AM   #17
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Quote:
Originally Posted by wrxsti.l View Post
lol, that's always the way. You finally get it installed and it doesn't wanna play ball

A few questions:
1. Are you using the direct serial plug connection - or a serial-to-usb adaptor?
2. Can you connect to it with LM Programmer (the software comes with the LC-1)?
3. Is it set to "gasolene"?
4. If all the above are ok, what version of RoMRaider are you using to log with?
5. In the RomRaider Logger, did you first go to the "plug-ins" menu and select the LC-1 and it's com port?
6. If yes, did you then select the LC-1 parameter to log it?
7. Try selecting/deselecting the LC-1 parameter a few times, sometimes it takes a couple of turns.

If you did all those things it should work.

1--- yes adaptor and installed the adaptor as well
2-- i didn't have the software that cam with it so i have downloaded the log works that came with the LM programmer
3-- yes when logworks comes up it is set to GAS
4-5- the newest version of romraider and i tried to select the comm port for the plug in and it just didn't want to read
6- Yes
7-- i am going to try again during my lunch today but i was just frustrated with it this morning and on my way to work and once i got to work and so i will be trying it later on today



thanks
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Old 11-17-2008, 09:14 AM   #18
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to tell you the truth it doesn't even really seem off time whise

but i could be wrong

how much time delay was it off from?
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Old 11-17-2008, 09:15 AM   #19
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Quote:
Originally Posted by breezeby View Post
1--- yes adaptor and installed the adaptor as well
2-- i didn't have the software that cam with it so i have downloaded the log works that came with the LM programmer
3-- yes when logworks comes up it is set to GAS
4-5- the newest version of romraider and i tried to select the comm port for the plug in and it just didn't want to read
6- Yes
7-- i am going to try again during my lunch today but i was just frustrated with it this morning and on my way to work and once i got to work and so i will be trying it later on today



thanks

oh yeah i finally got it to work

i just updated the firmware
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Old 11-17-2008, 09:50 AM   #20
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Quote:
Originally Posted by wrxsti.l View Post
Same - perhaps I wasn't clear enough in my post?
I was just backing you up!

Time delay appears to be about 3 lines off while logging... Basically, when you're logging, if you close the throttle, you will notice it takes about 3 lines for the afrs on the wideband to catch up to the closed throttle... So, however long that is - YMMV!!!
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Old 11-17-2008, 10:32 AM   #21
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is that when you use log works?

also i haven't tried WOT then just letting off and watching it but then again i haven't done very many logs with it that far back in the exhaust
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Old 01-07-2013, 09:33 AM   #22
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I am going to have a AEM Uego installed in my Dp, but Im not going to use the spot already tapped on the do....so after reading, I am assuming to have a bung welded in sayyyy 10in down from where the Dp meets the turbo? Would that be downstream far enough or should I go 12-14in down?

Thanks
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