History of MembersPage/Sascha/Porsche/Trigger
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2008-10-08 03:24:55 . . . . MembersPage/Sascha [low voltage from VR sensor... updated... ideas?]
2008-06-30 21:10:42 . . . . MembersPage/Sascha [created and cleaned up trigger page for porsche]
2008-06-30 18:03:13 . . . . MembersPage/Sascha [created and cleaned up trigger page for porsche]
2008-06-30 17:07:20 . . . . MembersPage/Sascha [created and cleaned up trigger page for porsche]
2008-06-30 16:56:43 . . . . MembersPage/Sascha [created and cleaned up trigger page for porsche]
2008-06-30 16:55:31 . . . . MembersPage/Sascha [created and cleaned up trigger page for porsche]


Changes by last author:

Added:
||MembersPage/Sascha/Porsche||MembersPage/Sascha/Porsche/Trigger||MembersPage/Sascha||

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Was having trigger issues with this car.

I seemed to be able to get a good RPM signal sometimes, around 220-260, sometimes it looses the signal (I'll see 0 RPM in MT)... but even when I get a good rpm signal (constant RPM reading in MT) I don't get a spark output or at the most a very random spark output from IGN out 00...

**This is not auditrigger, so mdd0c is totally useless (eg. [log]. See InputTrigger/TriggerLog )

**Wasn't aware of that, thanks for the info!

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60-2 wheel and sensor fitted from an Electromotive trigger kit. And was setup as specified from Electromotive's manual to have TDC on the 11th tooth BEFORE the missing teeth.

60-2electromotive.jpg

It might also be the crank pulley that is causing interference?? The trigger wheel is 6", while i think the crank pulley is 5.5" and is right up against the trigger wheel.

**6mm is more than enough if the crank pulley is lathe shape. If it has bolts, that can cause "ghost" pulses.

Pictures of the said trigger wheel and sensor:

IMAGE_117.jpg

IMAGE_122.jpg

==== Primary trigger settings (Running Firmware 1.0.73.) ====

**Edge: Rising

**Type: Multitooth

**All filtering, special trigger types is set to: Disabled

**TDC after the trigger (deg): 60

**Number of teeth on the wheel: 58

**Trigger tooth: 1

**Next trigger tooth: 15

**Crank min. period (usec): 1760 (7500rpm limit - 1000rpm safety)

**Angular width of tooth: 2

**Angular width of missing tooth: 6

.

* Measured Primary VR sensor AC voltage during cranking

**Found voltage during cranking to be weak @ 0.4V -according to Jorgen I should be seeing at least 1-5VAC Also was only able to get 0.4VAC by bringing the sensor gap down to 0.014"

***Any other idea's as to why the VVR sensor voltage is so low? We tried a brand new Electromotive trigger and same voltage... I've measured stock Bosch sensors on two different BMW's at approx 3.5-4VAC. I am considering to try mounting a stock BMW VR sensor and seeing if I get more voltage from it w/ the current wheel.