Atap question
12-02-2001, 05:58 PM
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Atap question When logging which O2s are the front two? I would assume B stands for bank and S stands for sensor? Would it be B1S1 and B2S1?
If it is this then I have a problem with my O2s being seperated by about .05(.900 left and .950s right) mv all the time. What should I check for the seperation?
If it is this then I have a problem with my O2s being seperated by about .05(.900 left and .950s right) mv all the time. What should I check for the seperation?
12-02-2001, 06:53 PM
#2
Re: Atap question You want B1S1 (bank 1, Sensor 1) and B1S2 (bank 1, sensor 2). Difference between O2 voltage from side to side is quite common although .050 mv difference is a little on the high side. Are you still running stock exhaust manifolds? Headers seem to even this out a bit more.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
12-02-2001, 07:11 PM
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Re: Atap question [quote]Originally posted by Patrick G:
<strong>You want B1S1 (bank 1, Sensor 1) and B1S2 (bank 1, sensor 2). Difference between O2 voltage from side to side is quite common although .050 mv difference is a little on the high side. Are you still running stock exhaust manifolds? Headers seem to even this out a bit more.</strong><hr></blockquote>
Alright I had it right. I know some difference is normal but the split seemed high today for whatever reason. I have stock manifolds. Most times there is only a .03 difference. Maybe a slightly dirty injector causing a lean condition but the PCM should be able to compensate somewhat with BLMs. There isn't a BLM split though. I am not sure what else could cause this high variance.
<strong>You want B1S1 (bank 1, Sensor 1) and B1S2 (bank 1, sensor 2). Difference between O2 voltage from side to side is quite common although .050 mv difference is a little on the high side. Are you still running stock exhaust manifolds? Headers seem to even this out a bit more.</strong><hr></blockquote>
Alright I had it right. I know some difference is normal but the split seemed high today for whatever reason. I have stock manifolds. Most times there is only a .03 difference. Maybe a slightly dirty injector causing a lean condition but the PCM should be able to compensate somewhat with BLMs. There isn't a BLM split though. I am not sure what else could cause this high variance.
12-02-2001, 07:51 PM
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Re: Atap question Unless I'm brain dead from studying (a good possiblilty) you want to monitor B1S1 & B2S1. That is bank 1 (drivers side) bank 2 (pass side) sensor 1 (pre-cat). Right?
12-02-2001, 08:01 PM
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Re: Atap question Good catch gwj! <img src="images/icons/blush.gif" border="0">
I must be the one who's brain dead. You want to monitor B1S1 and B2S1 (Bank1 front sensor) (Bank 2, front sensor).
I must be the one who's brain dead. You want to monitor B1S1 and B2S1 (Bank1 front sensor) (Bank 2, front sensor).
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
12-02-2001, 09:56 PM
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Re: Atap question [quote]Originally posted by Patrick G:
<strong>Good catch gwj! <img src="images/icons/blush.gif" border="0">
I must be the one who's brain dead. You want to monitor B1S1 and B2S1 (Bank1 front sensor) (Bank 2, front sensor).</strong><hr></blockquote>
I just glanced over it quick and didn't catch it either but I am running B1S1 and B2S1. Any other ideas guys?
Brett
<strong>Good catch gwj! <img src="images/icons/blush.gif" border="0">
I must be the one who's brain dead. You want to monitor B1S1 and B2S1 (Bank1 front sensor) (Bank 2, front sensor).</strong><hr></blockquote>
I just glanced over it quick and didn't catch it either but I am running B1S1 and B2S1. Any other ideas guys?
Brett
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12-02-2001, 11:07 PM
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Re: Atap question I have the same issue. My B1S1 runs .05-.06 richer than B2S1. I was going to swap the O2's around to see if they changed but havent got around to it yet. I havent noticed any ill effects because of this and my car runs like a raped ape with 30.5 degrees of timing and no knock.
12-03-2001, 08:01 AM
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Re: Atap question B1S1 always seems to run around .02 higher than B2S1 on my car @ WOT. It seems to be a pretty common thing as I have read on the boards many whose readings are higher on bank 1.