My project is 4 stroke 171cc scooter with 2 wire pwm idle valve
I capture the PWM signal from ECU, the pwm signal is approx 37 hz duty cycle around 23%
But when i try to enter the Frequency,it say my HZ too low need great than 80hz
How can i to break up this issue? change valve? or update firmware?
but my cpu is the blue one with 2.XX ver
when i use newest version it has many problem
like the wrong rpm and no spark(i had try D14and J10 but the same problem) idle valve not working
my version is 2.891 with V3.57
About PWM idle valve issue
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: About PWM idle valve issue
It should work OK at 80 Hz.
