Replaced Alternator, now AFR's are lean...
02-18-2011, 12:58 PM
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Replaced Alternator, now AFR's are lean... I had my LS1 RX7 retuned a few weeks ago and we had a low voltage issue.
HPTuners wouldn't flash the PCM so we put a jumpbox on the battery. It flashed the PCM and my WOT AFR was 13.0
Yesterday my Alternator died, so I replaced it and now my WOT AFR is 14.0-14.3
Just wondering if this would normally happen due to voltage issues or something else happened during the meantime.
HPTuners wouldn't flash the PCM so we put a jumpbox on the battery. It flashed the PCM and my WOT AFR was 13.0
Yesterday my Alternator died, so I replaced it and now my WOT AFR is 14.0-14.3
Just wondering if this would normally happen due to voltage issues or something else happened during the meantime.
02-18-2011, 01:37 PM
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02-18-2011, 02:24 PM
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Well my old UEGO, would stay in the 14's when the sensor died. I spent hours trying to fix my tune the first time it happened. Then I came to the realization, that my air fuel wouldn't change after adding any fuel.
02-18-2011, 09:43 PM
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02-19-2011, 10:19 AM
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6-800 miles really doesn't matter. It all depends on the fuel you use. I could only get a couple hundred miles...if that out of mine. This was due to using leaded fuel
02-20-2011, 10:38 AM
#7
I had a brand new sensor fail within 2 months, age is irrelevant..
Heres a trick that sometimes works..
Remove your Wideband sensor, get a mapgas or propane torch and heat the end of the sensor until it is glowing hot, sometimes this will burn off the crap that is causing the fault, worth a shot..and if it works you saved yourself $80 on a new sensor.
Heres a trick that sometimes works..
Remove your Wideband sensor, get a mapgas or propane torch and heat the end of the sensor until it is glowing hot, sometimes this will burn off the crap that is causing the fault, worth a shot..and if it works you saved yourself $80 on a new sensor.
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02-21-2011, 08:49 PM
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I had a brand new sensor fail within 2 months, age is irrelevant..
Heres a trick that sometimes works..
Remove your Wideband sensor, get a mapgas or propane torch and heat the end of the sensor until it is glowing hot, sometimes this will burn off the crap that is causing the fault, worth a shot..and if it works you saved yourself $80 on a new sensor.
Heres a trick that sometimes works..
Remove your Wideband sensor, get a mapgas or propane torch and heat the end of the sensor until it is glowing hot, sometimes this will burn off the crap that is causing the fault, worth a shot..and if it works you saved yourself $80 on a new sensor.
Have you tried to recalibrate the sensor in open air?
02-22-2011, 06:22 PM
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Drove the car last night and today, my AFR is getting closer and closer to my 13.0
Sometimes even held a 13.0
Its running alot better the more I drive it.
Sometimes even held a 13.0
Its running alot better the more I drive it.
