Author Topic: Missing RPM, no spark  (Read 8462 times)

Offline PIC

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Missing RPM, no spark
« on: August 03, 2011, 10:48:29 am »
I have a problem with opel engine. I hanve no spark or injector activity. Vems shows no RPM. when i measure the trigger signal then evrething is ok. Even the trigger log seems to be ok. It has 60-2 wheel, no secondary trigger. Sensor type is hall. Here is the trigger log picture and logfile:

http://www.2shared.com/photo/Nmmx35GD/trigger.html
http://www.2shared.com/file/zWhfWy8l/v33_n002413-2011-08-03-122233.html

And configuration file:

http://www.2shared.com/file/DfS_1blD/v33_n002413-A-20110803-124025.html

Offline mattias

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Re: Missing RPM, no spark
« Reply #1 on: August 04, 2011, 01:17:07 am »
Upload a vemslog of the same event (cranking the engine).
The log file contains all the configuration info, so no need for a configuration file.

Offline Ignitec

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Re: Missing RPM, no spark
« Reply #2 on: August 04, 2011, 01:45:12 am »
Which Opel engine? They usually have VR sensor on crank.
If you have everything under control, you\\\'re not fast enough!

Offline PIC

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Re: Missing RPM, no spark
« Reply #3 on: August 04, 2011, 07:18:30 am »
Quote
Upload a vemslog of the same event (cranking the engine).

I will do it as soon as i get to car.

Quote
Which Opel engine? They usually have VR sensor on crank.

Actually they have all types of sensors for crank. It depends from year and the EQU manufacturer.
This engine had by default siemens sensor that is without internal magnet.
To get this sensor to work the ECU itself generates siggnal with frequency of 150kHz.
So, for me it was easier to replace the sensor with HAL one.

Offline PIC

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Re: Missing RPM, no spark
« Reply #4 on: August 04, 2011, 10:56:24 am »

Offline mattias

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Re: Missing RPM, no spark
« Reply #5 on: August 04, 2011, 11:57:30 am »
I'm wondering if this is due to firmware issues since adding support for the Suzuki trigger.. could be that settings for the secondary trigger are causing this problem, even though you're not using it. Since your triggerlog checks out, even though it suggests either a weak battery or very uneven compression in the cylinders - you should get rpm and ignition events should appear in the triggerlog.

Try fixing the secondary trigger settings, by temporarily enabling cam sync, and in that dialog (secondary trigger), enable "Subaru special", disable "Suzuki VVT". Then disable "Subaru special" and disable cam sync to make it like before.

Can't see any more logical explanations for this problem unless circumstances are different while you're doing the triggerlog compared to when you made the triggerlog.
By the way, it's not a good idea to power the fuel injectors before you have roughly calibrated the ignition advance using a timing light.

Offline PIC

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Re: Missing RPM, no spark
« Reply #6 on: August 04, 2011, 12:26:46 pm »
This doesn't help. But i just noticed one interesting thing. If on Primary trigger setting page i set trigger type to coil type and left everything else as it was, then  i get the spark and injector signal. The only problem with this is that there is no zero signal. I mean it doesn't count the missing tooth. So the engine had even started one time.

Offline PIC

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Re: Missing RPM, no spark
« Reply #7 on: August 05, 2011, 03:46:26 pm »
Just downloaded firmware version 1.1.78 and everything is fine. Engine is working correctly.

Offline mattias

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Re: Missing RPM, no spark
« Reply #8 on: August 08, 2011, 12:10:46 pm »
It would be beneficial to try more recent firmware, to see what/when this problem occurs. You have the most common trigger system, it can't be complicated to figure it out.