rear o2's
rear o2's I had a mailorder tune on my ecm when i did my swap and had the rear o2's tunned out. I noticed with my predator that im showing reading for 4 sensors and i only have the front 2. Any ideas
Electrical noise?
Are they valid type readings or random values?
You need to realize, when the rear O2's are tuned out, the PCM still reads the pins, it just ignores setting the error codes, if it doesn't like the readings
Are they valid type readings or random values?
You need to realize, when the rear O2's are tuned out, the PCM still reads the pins, it just ignores setting the error codes, if it doesn't like the readings
Thank you, I cant remember the actual readings, I just thought it was strange too be reading something that wasn't there. We have about 4'' of snow right now so when everything clears up ill wright down the readings.
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Joined: Dec 2005
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From: CT
correct - what poconojoe said...
only the trouble codes for the rear O2's are disabled - so they don't throw codes and turn on your CEL... but they will still have readings if they're connected to the wiring harness...
only the trouble codes for the rear O2's are disabled - so they don't throw codes and turn on your CEL... but they will still have readings if they're connected to the wiring harness...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
