MembersPage/PeepPaadam/PorscheThreeTwoCarrera (2020-07-22 12:58:56)

Car: 1984 Porsche 911 3.2 Carrera, 3.2liter 6cyl boxer aircooled, from factory Motronic 1.0 with 35pin connector, currently VEMS plug and play using factory harness (TPS, MAT, WB added), batch fire (two banks of 3 injectors, low-z), stock coil (max dwell 2,1 ms stock) and distributor.

Q: EC36/13 with cam-HALL inverter ?

A: No CAM inverter, left open, EC36/13, can take photo of sectrig hardware setup.

129+1 auditrigger (but with separate tooth ring and pin not reading starter ring).

The auditrigger was made by audi to read the starter ring (sectrig also timed from pin on crankshaft ), that setup is supported by VEMS (proven, works reasonably reliably).

Reference+and+Speed+Sensors1332680796.jpg

Problem: shows trigger error ("tooth length bad" and occasionally doubles RPM causing VEMS to hit RPM revlimiter. Very dangerous situation and need to resolve it.

Here are log and vemscfg, engine runs otherwise nicely.

http://www.vems.hu/files/PeepPaadam/911.vemscfg

http://www.vems.hu/files/PeepPaadam/911_3.2_v3.3_u019379-2020.07.06-14.59.51.vemslog


IMPORTANT : triggerlog is imperative to reproduce and verify setup see InputTrigger/TriggerLog

1) To take triggerlog, first apply the following config changes, burn and power cycle ecu afterwards:

2) Than proceed to taking triggerlog in format:

3) Upload triggerlog here, also provide vemscfg of configuration used during taking of the triggerlog.

After receiving the required data to facilitate remote review of your trigger issue, i will start investigation.

Best regards,

Dave


Is there a chance the cam-HALL window (rising or falling edge) is very close to the crankhome-VR pulse (sometimes before/after)?