Author Topic: Has anyone seen lambda readings in a log file, but no ego correction happening?  (Read 79946 times)

Offline Tony C

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Cheers for that Rob,

Rob/anyone in the previous post i made there is a zip file and in there is also my.msq,
how does the lambda table look in my .msq?
as wernt to sure what it should be at certain points etc, and as the ego was not working i dont think it followed the table any way.

Vems Ecu, Twin Plenum efi and N2o
13.314 @ 104.39 mph (10/06/07 3.9 v8)
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Offline [email protected]

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To be honest I think you fuel is a long way out - more than the moderate trimming that the EGO provides can or should cope with.
The fuel map needs to be addressed from the ground-up, you've changed the inlet and the injectors, as this flows more air and increases VE at various points the whole map needs to be addressed.

Offline Tony C

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ah ok mate,
all i have changed is the injectors,
the intake is as was when the vems was first fitted :D

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
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Vems Firmware: V1.1.74

Offline [email protected]

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I thought you'd put on a magic manifold at the same time. No worries

In theory all that you have needed to do would be to change the required fuel value to suit the new injector sizes and then done some cleaning up on the map to get it all ship shape. I'm not sure how the map could have got to the state that its in now, was there a map that the car ran better with that you can return to?  Not the msq, just the fuel and lambda tables.

Rob

Offline Tony C

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Not really mate,
David (dnb) has been working on my fuelling and lambda, but he wanted to see what was happening with the ego,
now its working he said last night he could have another go at setting her up again now.

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 [email protected]

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Well if its in David's hands we can relax and see what magic he will produce ;D

Offline Tony C

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he has done miracles with her so far,
he said he can now try and iron her out a bit more,
i have asked him if he could look at my lambda table to see if it looks right, no doubt if it is not he will correct it just like the VE table he did,

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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mmmmmmmmmmmmmmmmm
this is interesting,
i have done nothing to the car over night,
all i have done is turned the ignition filter to enabled settings> primary trigger
and i have no spikes on my datalog,
it may work after all with this on Rob.

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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Just looked at the log from start to finnish and no ignition spikes with that filter on,
so thats promising,

BUT at around time line 410 and 512 the ego and rpm looks like they are at sea, is this the kangarooing effect i felt? when in traffic at low throttle?
i know the VE is still not right, but i have made small adjustments over night so im heading the right way before DNB takes over,

also at time line 1119.02 the kpa rockets from 69.0 to 2117 then straight back to 69.0 what would cause that as never seen that before on any of my logs from the very begining :(

todays log and .msq:
www.v-8.org.uk/zipfiles/log05_04_08.zip
« Last Edit: April 05, 2008, 05:15:31 pm by Tony C »

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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did anyone have any clues why the map sensor now has spikes instead of the ignition with the filter on?

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