Author Topic: Strange lambda reading on datalog.  (Read 7918 times)

Offline Tony C

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Strange lambda reading on datalog.
« on: October 25, 2009, 03:01:38 am »
got the car running today after Dave had to do some work on the ecu,

but noticed in the datalog,
that the lambda target is around 2.30 BUT the lambda table is at 1.00
the target seems to be  be nearly double what it should be
any ideas?
its version 1.1.44

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74

Offline gunni

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Re: Strange lambda reading on datalog.
« Reply #1 on: October 25, 2009, 03:49:51 am »
Post a picture.
Of your log. or a link to the log.
Also a pic of your lambda table.

Offline Tony C

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Re: Strange lambda reading on datalog.
« Reply #2 on: October 25, 2009, 04:18:17 am »
Hi Gunni,
the datalog and msq are here:
http://www.capriracing.co.uk/vems/latest.zip

lambda table here:

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74

Offline Tony C

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Re: Strange lambda reading on datalog.
« Reply #3 on: October 25, 2009, 07:09:07 am »
also just noticed there is no Batt v reading on the datalog either.

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74

Offline Sprocket

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Re: Strange lambda reading on datalog.
« Reply #4 on: October 25, 2009, 07:54:04 am »
the later firmwares have different log files. If you use Vems log viewer, it doesnt like them. I think the log files have been changed to use Megalog viewer, and the log file you attached works fine in that environment.

Offline Tony C

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Re: Strange lambda reading on datalog.
« Reply #5 on: October 25, 2009, 08:02:04 am »
wheres megalog viewer mate?

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74


Offline Tony C

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Re: Strange lambda reading on datalog.
« Reply #7 on: October 25, 2009, 05:42:32 pm »
ta mate i was using vems viewer,
all seems ok on datalog now using megalog viewer.

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
Sponsored by: www.caprisport.com & www.interpart.biz
Web site: http://www.capriracing.co.uk

Vems Firmware: V1.1.74