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EFILive Data - Need help

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Old May 24, 2004 | 11:15 PM
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From: Boise, ID
Default EFILive Data - Need help

I posted this on another board but haven't gotten any solid answers. I logged the following idle data for 10-15 minutes. The car has smelt rich for quite some time, and I'm wondering if this would confirm anything. When I watch the HO2S21 oxy sensor I can't help but notice how much of its time it spends in the lower portion of the spectrum compared to the H02S11 which fluctuates up and down as I have been told a normal O2 sensor should do. Could this indicate one or both sensors on one side have gone bad, or a possible problem before the 02 sensors? I have the log file if it would help. I've logged idle a few times and this is consistent behavior. During acceleration and normal driving both sensors fluctuate properly. I've got a smog check coming up in less than a month and I need to get her running clean. Thanks for any advice you might have!

CAPTION DESCRIPTION MIN AVG MAX
ECT Engine Coolant Temperature 174 196 199
RPM Engine RPM 825 875 911
O2LRTT11 O2 Sens. Avg L to R Time, B1-S1 27 27 27
O2LRTT21 O2 Sens. Avg L to R Time, B1-S2 23 23 23
O2RLTT11 O2 Sens. Avg L to R Time, B2-S1 54 54 54
O2RLTT21 O2 Sens. Avg L to R Time, B2-S2 58 58 58
O2S11-O2SV Voltage 0.155 0.407 0.895
O2S12-O2SV Voltage 0.07 0.142 0.595
O2S21-O2SV Voltage 0.26 0.377 0.775
O2S22-O2SV Voltage 0.18 0.238 0.505
LONGFT1 Long Term Fuel Trim - Bank 1 -2.3 2.3 4.7
LONGFT2 Long Term Fuel Trim - Bank 2 -12.5 -2.8 -0.8
LONGFTAVG1 Long Term Fuel Trim Avg Bank 1 -3.1 -2.1 -1.6
LONGFTAVG2 Long Term Fuel Trim Avg Bank 2 -4.7 -3.1 -2.3
O2S11-SHRTFT Short Term Fuel Trim -4.7 0.9 4.7
O2S12-SHRTFT Short Term Fuel Trim 99.2 99.2 99.2
O2S21-SHRTFT Short Term Fuel Trim -5.5 0.4 4.7
O2S22-SHRTFT Short Term Fuel Trim 99.2 99.2 99.2
SHRTFT1 Short Term Fuel Trim - Bank 1 -4.7 0.8 4.7
SHRTFT2 Short Term Fuel Trim - Bank 2 -5.5 0.4 4.7
SHRTFTAVG1 Short Term Fuel Trim Avg Bank 1 -5.5 0.3 3.1
SHRTFTAVG2 Short Term Fuel Trim Avg Bank 2 -6.2 -0.2 3.9

Oh, quick list of mods: lid, filter, slp maf (may get rid of it soon), ls6 intake, pat. perf. stage II heads, gm hotcam, slp lts/cats/y-pipe, magnaflow, debaffled & egr tube is trimmed
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