MembersPage/KevinBlack/VWCorrado (2010-07-09 01:03:01)

VW 4 cylinder engine with distributor.

Hall Effect sensor with 4 window wheel in distributor used for triggering.

Distributor used for ignition, Stepper A to single Ignitior/Coil.

The issue is: RPM value drops very low every few seconds. Does it also misfire / bog than ? Or apparently runs fine ?

Tried using 5volt and 12volt supply for the Hall Sensor, same results.

Experiment

  • The car is far away from my location. I will get to see it in a week or so. My scope is broken so diagnosis will be difficult.
  • Tried setting the trigger teeth to "4" (incorrect) instead of "2" and the car started/idled, but dies when the throttle is hit.
Why would 4 teeth setting run better? (Distributor with 4 windows, turns half speed so one engine rev = 2 trigger edges, not 4.)

Vemslog:

http://www.vems.hu/files/KevinBlack/CSP%20Corrado%20New.vemslog