Re: some useful? info on testing injectors
Be careful, some injectors are called Peak and Hold. Basicly, the injector
takes a higher current to open, then needs a lower current to keep it open. If you supply to much current to this type of injector you will overheat it and burn it out. http://www.msdignition.com/fuel_3.htm Kelly "DougW" <post.replies@invalid.address> wrote in message news:oj1hc.59330$ec1.43830@okepread01... > SB did pass the time by typing: > > Sounds like a project for my electronic skills. > > > > Can someone give me the low down on how these are triggered? > > 12v dc. They are just a solinoid powered by a fuse and grounded > through the ECU. The "short" test is to put 12V across the injector > pins and listen for a click. > > Needless to say, not rated for constant duty. :) > > Coil resistance is nominally 14.5 Ohms at 68 F > > That would set the lower power requriement for any transistor > switching. I'd probably aim higher or fuse it just in case > you hook up to a sticky or shorted injector. (possibly current > limiting diode?) > > Dunno.. sleepy. must go to real job in the morning. > > -- > DougW > > |
Re: some useful? info on testing injectors
Be careful, some injectors are called Peak and Hold. Basicly, the injector
takes a higher current to open, then needs a lower current to keep it open. If you supply to much current to this type of injector you will overheat it and burn it out. http://www.msdignition.com/fuel_3.htm Kelly "DougW" <post.replies@invalid.address> wrote in message news:oj1hc.59330$ec1.43830@okepread01... > SB did pass the time by typing: > > Sounds like a project for my electronic skills. > > > > Can someone give me the low down on how these are triggered? > > 12v dc. They are just a solinoid powered by a fuse and grounded > through the ECU. The "short" test is to put 12V across the injector > pins and listen for a click. > > Needless to say, not rated for constant duty. :) > > Coil resistance is nominally 14.5 Ohms at 68 F > > That would set the lower power requriement for any transistor > switching. I'd probably aim higher or fuse it just in case > you hook up to a sticky or shorted injector. (possibly current > limiting diode?) > > Dunno.. sleepy. must go to real job in the morning. > > -- > DougW > > |
Re: some useful? info on testing injectors
Be careful, some injectors are called Peak and Hold. Basicly, the injector
takes a higher current to open, then needs a lower current to keep it open. If you supply to much current to this type of injector you will overheat it and burn it out. http://www.msdignition.com/fuel_3.htm Kelly "DougW" <post.replies@invalid.address> wrote in message news:oj1hc.59330$ec1.43830@okepread01... > SB did pass the time by typing: > > Sounds like a project for my electronic skills. > > > > Can someone give me the low down on how these are triggered? > > 12v dc. They are just a solinoid powered by a fuse and grounded > through the ECU. The "short" test is to put 12V across the injector > pins and listen for a click. > > Needless to say, not rated for constant duty. :) > > Coil resistance is nominally 14.5 Ohms at 68 F > > That would set the lower power requriement for any transistor > switching. I'd probably aim higher or fuse it just in case > you hook up to a sticky or shorted injector. (possibly current > limiting diode?) > > Dunno.. sleepy. must go to real job in the morning. > > -- > DougW > > |
Re: some useful? info on testing injectors
Just a followup..
Found this while searching. http://www.bgsoflex.com/FI_tester_doc.pdf Interesting, and I have a regulator and pump. Problem is the connector, possibly just hose and a pipe clamp would work to feed the injector. -- DougW |
Re: some useful? info on testing injectors
Just a followup..
Found this while searching. http://www.bgsoflex.com/FI_tester_doc.pdf Interesting, and I have a regulator and pump. Problem is the connector, possibly just hose and a pipe clamp would work to feed the injector. -- DougW |
Re: some useful? info on testing injectors
Just a followup..
Found this while searching. http://www.bgsoflex.com/FI_tester_doc.pdf Interesting, and I have a regulator and pump. Problem is the connector, possibly just hose and a pipe clamp would work to feed the injector. -- DougW |
Re: some useful? info on testing injectors
Just a followup..
Found this while searching. http://www.bgsoflex.com/FI_tester_doc.pdf Interesting, and I have a regulator and pump. Problem is the connector, possibly just hose and a pipe clamp would work to feed the injector. -- DougW |
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