MembersPage/GrmRacer/IssueReport (2006-02-06 18:50:24)

Issue

IGN output behavior changes with RPM and # of cylinders.

History

I found this issue when attempting to functional check a unit prior to configuration. Initial reports suggested that it was a bad trigger signal (benchtop generation). Resolved this problem and now can generate a proper 60-2 wheel VAG style without any wheel count errors.

Description of issues

Current experiment

Reflash VEMS v3.3 with new firmware 1.0.23 first then use the latest release.

Firmware version 1.0.23 as downloaded from filethingie


Problem is that the number of outputs driven changes when a factor of RPM and # of clyns and #of IGN outputs selected

Original configuration to find problem

Basic description is the Ingnition outputs were set in

Ignition Settings

Outputs to use in h[2] set to [7..0]

Yes I know this is not valid for a wasted spark BUT, it produces bad output.
  • above 41Hz(~2500rpm) with an 8 clyn setup. Note that another_trigger_tooth=1E doesn't seem good for 8cyl. Please provide all the configs you used.
  • above 29Hz(~1650RPM) with a 4 clyn setup
Symptom above these values all IGN outputs that are set are triggered else only 2 outputs are triggered.

if Ignition Settings

if Ignition Settings

if Ignition Settings

if Ignition Settings