Cheap oscilloscope for sensor testing?
Cheap oscilloscope for sensor testing? I see lots of sub $100 digital pocket oscopes for sale and was curious if these will cut it.
Backstory-
I’m trying to figure out if I’m getting a crappy signal from my cam/crank sensors. Doesn’t like to start first time, almost always have to turn the key off then back on and it fires right up. Also has a strange hiccup if I try to rev the engine under no load(in neutral), but never acts funny when I’m driving the car. I’ve tried multiple sensors with no change but I think I’m just getting a dirty signal possibly due to interference, so I want to check the waveform coming off the sensors.
Backstory-
I’m trying to figure out if I’m getting a crappy signal from my cam/crank sensors. Doesn’t like to start first time, almost always have to turn the key off then back on and it fires right up. Also has a strange hiccup if I try to rev the engine under no load(in neutral), but never acts funny when I’m driving the car. I’ve tried multiple sensors with no change but I think I’m just getting a dirty signal possibly due to interference, so I want to check the waveform coming off the sensors.
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Joined: Dec 2022
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Wouldn't hurt to try one...for science... you could compare it to a known good vehicle to confirm accuracy.
Or any repair shops near you with decent technicians should have one...i have 2 scopes in my box... you could pay them probably less than 100$ to scope it for you
Or any repair shops near you with decent technicians should have one...i have 2 scopes in my box... you could pay them probably less than 100$ to scope it for you
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Joined: Jan 2009
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From: Bostwick, GA.
TECH Fanatic
Joined: Jan 2018
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I have no experience with this unit, but it's kinda tempting: https://www.fnirsi.com/products/ds21...46245070799066
Has two inputs, so you could overlay the crank and cam signals and see if they line up.
Has two inputs, so you could overlay the crank and cam signals and see if they line up.
I just got this one last week and so far I've been happy with it. It's a little bit pricier than the ones posted above though. It's 2 channel and also has a signal generator, spectrum analyzer, and frequency response analyzer. I don't care about the spectrum analyzer or frequency response analyzer as I will never use them, but I did play around with the signal generator a bit to manipulate an instrument cluster on the bench. The fan noise is a little excessive but most of the time I'm in a noisy environment when I'm using it so it's not a big deal to me.
https://www.fnirsi.com/products/dpos350p
https://www.fnirsi.com/products/dpos350p
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On The Tree
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