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I have a customer with a PNP vems ecu that ever since swapping to a 7a flywheel is having some apparent trigger problems. The car ran without issues on the AAN flywheel. |
I have a customer with a PNP vems ecu that ever since swapping to a 7a flywheel is having some apparent trigger problems. The car ran without issues on the AAN flywheel. |
http://www.efiexpress.com/downloads/jason_trigger_logs.zip |
* 1.1.67 firmware, extract .vemslogs from [logs.zip] |
the trigger logs seem to indicate that there are no problems with the primary trigger signal, so I suspect the problem is in some way related to the secondary trigger. The car is not local, so I'm playing somewhat blind here. |
The trigger logs seem to indicate that there are no problems with the primary trigger signal, so I suspect the problem is in some way related to the secondary trigger. The car is not local, so I'm playing somewhat blind here. |
-- SN should be below the threshold for that problem: this one is 2106 |
Do you know how it was ordered ? If 1k pulldown, 1k5 pulldown or 12k pullup or other is used for sectrig-VR ?
-- it was likely ordered same as all the other ecus I order: -- 22k pullup primary and 1k5 pulldown+mode 5V sec -- I cant find the original order number though, perhaps you can lookup that info from the webshop backend to confirm? |
ECU SN is below the threshold for the "miscap" problem: v3 srl 2106 |
In any case, it would be good to know.
* What is ECU serialnr ? (order-ID or order date ?) -- ECU SN is 2106 * Also, what is sectrig-VR sensor resistance ? -- should be in the order comments, assume it is 1k5 but check the order comments. |
* it was likely ordered same as all the other ecus I order:
** 22k pullup primary ** 1k5 pulldown+mode 5V sec ** Also, what is sectrig-VR sensor resistance (in the car! not in ECU) ? |
** did not measure, is this externally measurable by the customer? Measure DC voltage: Pin47 and pin49, using pin48 (which should be GND) as reference. Engine OFF, but ignition ON. |
-- did not measure, is this externally measurable by the customer? across what pins? At the moment I'm probably just going to ship him an exchange box and measure the details of the 'problem' box when I get it back.
---- Although it's very likely a HW problem, we should inspect everything, including sw. * firmware ? |
Going to ship him an exchange box and measure the details of the 'problem' box when I get it back.
Is it possible that some other changes happened (perhaps unintentionally) when switching to 7A flywheel ? (it often happens that the problem lies elsewhere than what we're focusing). |
-- 1.1.67 |
* saved .vemscfg config ? |
you should be able to extract that from the .vemslogs I provided in the above zip. |