11-10-2019, 09:34 PM
the ISC solenoid moves 200 times a second, most this old are worn out , 30 years, is way way longer than the designer intended this part to last.
it is simply worn out. and now loose and noisy
yes those Nano scopes some blow up at over 5vdc input, watch out for that.
keep it away from the spark coil primary, the back EMF there is over 100v. boom. smoke lets out.
40v -peak to peak here, use 10x1 probe and win.
https://www.seeedstudio.com/DSO-Nano-v3.html
that front end noise, moving or not or both? (front lower ball joints, or CVJ Jack shafts, or even struts, sure the locks can make noise, if stuck 1/2 way, they make ratchet sound, like your finger over comb, but loud and metallic)
good luck, and glad your account works.
it is simply worn out. and now loose and noisy
yes those Nano scopes some blow up at over 5vdc input, watch out for that.
keep it away from the spark coil primary, the back EMF there is over 100v. boom. smoke lets out.
40v -peak to peak here, use 10x1 probe and win.
https://www.seeedstudio.com/DSO-Nano-v3.html
that front end noise, moving or not or both? (front lower ball joints, or CVJ Jack shafts, or even struts, sure the locks can make noise, if stuck 1/2 way, they make ratchet sound, like your finger over comb, but loud and metallic)
good luck, and glad your account works.
http://www.fixkick.com