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my PWM idle valve hums
Posted: Thu Nov 20, 2008 8:01 am
by rug
I just hooked up my PWM valve and it hums back at me. It is a honda valve from a b16a1. If I increase the frequency the hum is less audible. How do I figure out what frequency my valve works at? Is huming bad? Can the wrong setting kill my valve?
/Carl
Re: my PWM idle valve hums
Posted: Thu Nov 20, 2008 8:36 am
by Matt Cramer
Try around 400 Hz. If the frequency is too far off it will make a fair amount of noise.
Re: my PWM idle valve hums
Posted: Thu Nov 20, 2008 9:59 am
by dirtytorque
pwm valves hum.
Re: my PWM idle valve hums
Posted: Fri Nov 21, 2008 10:44 am
by rug
Thanks! I'll give it a go this weekend.
/Carl
Re: my PWM idle valve hums
Posted: Fri Nov 21, 2008 2:12 pm
by rug
400 Hz seems impossible since you can only put the multiplier to 8 x 30,5. But it is a lot quieter at that setting!
Now all I got to do is get a good signal from my VR sensor and then I am going to try to start this thing
/Carl
Re: my PWM idle valve hums
Posted: Tue Dec 02, 2008 7:05 pm
by jk35
Sounds like you're getting close Carl!
Where was your PWM idle valve located? I'm building MSIIv3.0 for my '97 Audi A4 Quattro 1.8 turbo. I can't find my idle valve, nor can I find what it even looks like...