Trigger Offset does not work?[SOLVED]
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Trigger Offset does not work?[SOLVED]
I am trying to get uS to start a Honda CBR 600. I have not been able to get it started. I have two questions.
question 1
what setting is it that changes the cranking advance?
question 2
when I got o basic ignition setting and set trigger offset(deg) to 13deg I get the output below. the took after the missing tooth is at 13deg BTDC. If I change that number to 0 or anything number( I tried up to 300) I get the exact same output, I am wondering if this is a bug, or what I am I doing wrong?
The red line in the pic is the VR output, and the blue line is the output from IGN1.
- Attachments
-
- setup.png
- (9.91 KiB) Downloaded 17 times
1990 4.2L Jeep YJ Running MS Extra controlling fuel, ignition and a three wire PWM idle valve.
Running MS/extra, MT 2.25 ,hr_08 code, v2.2 board, HEI 7 Pin.
-
SQLGUY
- Experienced Squirter
- Posts: 243
- Joined: Sun May 14, 2006 3:03 am
- Location: Colorado Springs, CO
Re: Trigger Offset does not work?
Basically, if you set cranking trigger to "trigger rise", the ECU will fire based solely on the physical location of the pickups. Things like trigger offset, your spark table, and (I believe) rising or falling edge will have no effect. If your pickups (or the crank wheel) are not set such that the trigger occurs near TDC, and are not movable, I don't think you will be able to use trigger rise. If they are movable, you can use trigger rise and move them so they're picking up near TDC, and your trigger offset will probably then be 0.
If you can't (or don't want to) move them, you can set the cranking trigger to "calculated". You should then set the first couple of squares in your spark map to 0 and adjust the trigger offset until your timing light shows spark at TDC. The trigger offset for dual tachs must be negative. So, if this setup initially gives spark at about 40BTDC, set the trigger offset to -320 (40-360).
Hope this helps.
Paul
Re: Trigger Offset does not work?
1990 4.2L Jeep YJ Running MS Extra controlling fuel, ignition and a three wire PWM idle valve.
Running MS/extra, MT 2.25 ,hr_08 code, v2.2 board, HEI 7 Pin.
Re: Trigger Offset does not work?
1990 4.2L Jeep YJ Running MS Extra controlling fuel, ignition and a three wire PWM idle valve.
Running MS/extra, MT 2.25 ,hr_08 code, v2.2 board, HEI 7 Pin.