Data log - staged injection - seqPW3 = 0

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arran
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Data log - staged injection - seqPW3 = 0

Post by arran »

Hi,
It's been a while since I added SEQPW1 and SEQPW3 back onto the traces displayed in Mega Log Viewer, but SEQPW3 now just reads 0, I'm sure that previously SEQPW1 was primary injection mSecs, and SEQPW3 was secondary injection mSecs.

Duty 1 and Duty 2 give expected duty for primary and secondary

I've posted in the TS section rather that MLV because I'm thinking it may be a problem with the writing of the data rather than the reading.

Any ideas ?
Last edited by arran on Mon Sep 28, 2015 3:58 pm, edited 1 time in total.
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
Matt Cramer
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Re: Data log - staged injection - seqPW3 = 0

Post by Matt Cramer »

:msq:
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arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

Below shows a log from a dyno run in July, running firmware 1.3.4. The SEQPW 1 and SEQPW3 are correctly showing injector mSecs
2015-07-26_11.01.53_RMS Dyno.msl
2015-09-17_18.33.17_1.3.4_final.msq
Last edited by arran on Tue Sep 29, 2015 3:46 am, edited 1 time in total.
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

This one was taken on the weekend, it is one of a couple of standing start runs down the main straight of Queensland raceway. Firmware 1.4.1. SEQPW3 (and 4) are 0
2015-09-27_15_modified.msl
CurrentTune - Copy (2).msq
Last edited by arran on Tue Sep 29, 2015 3:48 am, edited 1 time in total.
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

.
Last edited by arran on Tue Sep 29, 2015 3:48 am, edited 2 times in total.
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
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Re: Data log - staged injection - seqPW3 = 0

Post by jsmcortina »

Please post before and after MSQ and datalog sets.

James
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arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

Done, i've added the msq with its associated data log post,

thanks
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
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Re: Data log - staged injection - seqPW3 = 0

Post by jsmcortina »

Confirmed, there's something wrong. Looks like it got changed in November 2014. Investigating.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

Hi again,

I also noticed that the Duty 1 and Duty 2 can exceed 100%. Should this be possible?
MSL attached, in third gear I get to 104%
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
dontz125
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Re: Data log - staged injection - seqPW3 = 0

Post by dontz125 »

It means you've run out of injector, and the MS is trying to hold it open longer than 100%. Unfortunately, that doesn't accomplish anything. This fits with the discovered error of the staged injectors not firing.
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Re: Data log - staged injection - seqPW3 = 0

Post by jsmcortina »

dontz125 wrote:the discovered error of the staged injectors not firing.
That's not the error.

The found bug is that the REPORTED pulsewidth on the channels is incorrect, the actual electrical pulsewidth should be ok.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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arran
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

Yes, the AFR is behaving. If there was an actual secondary injector problem the car would have had an engine failure by now
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
arran
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Posts: 617
Joined: Mon Oct 29, 2012 2:34 am
Location: Brisbane Australia
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Re: Data log - staged injection - seqPW3 = 0

Post by arran »

Confirmed that this logging issue is fixed in 1.4.2
RX7 Series 2 13B Turbo. Megasquirt 3 with 3X Expander and V3 CPU. Firmware 1.4.1
Knock module, twin EGT, real time clock, WBO2, full sequential fuel and spark
http://web.aanet.com.au/arran
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