> From: Luis Moreira > Subject: [EE] Injector Testing > To: "Microcontroller discussion list - Public." > Message-ID: > > Content-Type: text/plain; charset=3DUTF-8 >=20 > Hi Guys, > Lately I am been getting a few jobs that require me to look into the > correct functioning of the Injectors circuits on a vehicle. > I can do a few tests like injector resistance, but really the way I thoug= ht > about doing this, on a 4 cylinder vehicle at least, was to build a breako= ut > box which would allow me to measure voltage and current. For voltage and = to > check timing I would then connect it to a 4 channel scope. For current > measurement I was thinking about using one of the LEM current sensors but > probably one of the allegro sensors would be fine, then again could use > scope to check any inconsistencies. There are some methods that exist > already like the NOID lights but they test one injector at a time. This > would be a test that would check the all circuit in one go. I do have som= e > connectors for one type of injectors and would probably have to get a few > different ones. > What do you guys think. Is there anything that already exists that I can > base this on? > Thank you. > Luis > On 26 Feb 2015 21:45, "Josh Koffman" wrote: I have a current clamp much like this one: =20 http://www.aliexpress.com/item/Hantek-CC-65-AC-DC-Current-Clamp-Meter-Multi= meter-with-BNC-Connector/1888977772.html =20 Mine is an earlier version, the CC60, which was supplied with a professiona= l (Vetronix) scan tool package. It is probably 20 years old now but is stil= l the tool that I use for jobs like this. I shudder to think how much mine = cost new, the Vetronix sticker adds $$. James =20 =20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .