MembersPage/EricN/Trigger (2006-04-12 06:28:13)

Trigger related page for MembersPage/EricN

truck is a 6 cyl. I am firing cop coils and using a distributer mounted trigger wheel. Tooth count is dependent on what sensor I get working

Board is a v3.2 serial number=110

MembersPage/EricN/Trigger/Optical

Going to try this for now.

MembersPage/EricN/Trigger/Vr

This page hopefully all garbage. I cant get the input trigger to stop cutting out (happens at any rpm all the way to redline) no matter what I try.


OPTICAL TRIGGER DROPS OUT LIKE VR DOES

Built an optical trigger. 6 teeth, set to coil type ignition. Use rising or falling edge makes no difference. Use filtering or not, makes no difference. Trigger drops out at any rpm (tested up to 4000) is worse at low speed. Loose fuel pump, injectors and ign.

Used signal generater, run at 250 to 500 rpm according to lcd. Fuel relay cuts out in the same manner. Tested signal at atmega128 pin 29, looks clean.

Is there anything config related that could cause vems to cut out? Keeping in mind the test bench has no sensors hooked up at all, just a input trigger and fuel pump relay.

http://www.vems.hu/files/EricN/datalog200604072201.xls
  • strange format (not xls). However, it can be opened as tab separated csv (just some numbers show as dates). Perfer real xls format.
  • Odd, it works fine for me. Will do another and repost.
  • it can be verified that RPM drops to 0 immediately in 2 cases (first it's just one line! stays that way on the second occasion) Trigger dropped out at least 10 times, only 1 showed up, second occasion was me letting go of the drill before disabling the log, signal drop is extremely quick. Time does not fall back or advance. It's unlikely to be comm error. Engine state changes from 3 to 0 at the same time. Wheel error =0?
  • http://www.vems.hu/filethingie.php?subdir=EricN I cant understand why I am not able to make this readable and I am at my wits end. I cant even attach a link other than this one. It is terminal.log. The megatune datalog from before is there too, see if I screwed up somehow when I attached the link before.