s80 no spark pulse at COP
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- Posts: 1622
- Joined: Fri Feb 28, 2014 1:03 pm
- ECU Model: S40 Pro
- Distributor: DTA
- Firmware Version: 79
Re: s80 no spark pulse at COP
However, if you are getting the extra pulses when cranking, you risk the engine synching on the exhaust stroke, instead of the firing stroke. You need to clean up the trace at cranking speeds.
Re: s80 no spark pulse at COP
Ok thanks, makes sense. I can set sequential only above 1000rpm to rule that out I guess.
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- Posts: 3577
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: s80 no spark pulse at COP
But I think the sequential aspect only applies to injection.
If you're COP...will the ecu revert to twin spark until crank/cam are sync'd ?
If you're COP...will the ecu revert to twin spark until crank/cam are sync'd ?
Re: s80 no spark pulse at COP
It ran ok before under 2000 rpm with cop selected , cut out as it tried to switch to sequential.
Re: s80 no spark pulse at COP
Is there a way you can play the log back in the tuning software so you can see a trace over the fuel table as it plays ? Like you can with MS.
Re: s80 no spark pulse at COP
Engine seems to be running fine now. Thanks to everyone for your help.
Lesson learned : Ensure good battery connection and voltage
Ensure split bank throttle linkages are set exactly to open in sync.
Use VR sensor for crank wheel
Lesson learned : Ensure good battery connection and voltage
Ensure split bank throttle linkages are set exactly to open in sync.
Use VR sensor for crank wheel
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- Posts: 3577
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: s80 no spark pulse at COP
You can have it leave a trace as you rev...which will remain on screen until you clear it. But not an actual playback.omegaman wrote:Is there a way you can play the log back in the tuning software so you can see a trace over the fuel table as it plays ? Like you can with MS.
The little squares to select functions below the main text descriptions at the top of the page.
the two rightmost squares, Mapping trails.
I think there's a keyboard function to turn them off/on too.
Re: s80 no spark pulse at COP
Ok thanks Steve.
I found a way to view the fuel tables in megalog viewer. You can use a tune file from another car and just make the fuel or ignition maps have the same values in the rows and columns. That way you can see the cell highlighted as the log plays.
I found a way to view the fuel tables in megalog viewer. You can use a tune file from another car and just make the fuel or ignition maps have the same values in the rows and columns. That way you can see the cell highlighted as the log plays.
Re: s80 no spark pulse at COP
Quick update on this. All was running well but had 2 random cutouts, no spark even while running coil test. It turned out to be a dry solder joint on the loom spade connector where it joined the fuse box. Its running beautifully now. Passed MOT for the first time since 2007!
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- Posts: 3577
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: s80 no spark pulse at COP
Cool..I do like those old Porsches.
They even fit LS engines to some of the newer ones...and apparently they're lighter than the OEM water cooled versions !! No idea about the air cooled though
They even fit LS engines to some of the newer ones...and apparently they're lighter than the OEM water cooled versions !! No idea about the air cooled though