Bad injector?

[doodie]

I bought a set of 550cc Injectors and I wasn't smart enough to have them balanced and cleaned and I threw it on. The car misfired on cylinder 3 with it so I took them back out.

Do you guys think that a simple clean and balance would fix it?

 

[psychlow]

Did it misfire on cyl 3 no matter how you tuned?

How much resistance do you get when you hook up a multimeter to both posts on the injector? When it was on the car, did you verify that it opened when it was pulsed?

 

[doodie]

Nope, My multimeter ran out of batteries so I never got to check anything. The car ran great for the first 2 hours I had them in there but it took a dump. My friend with a pocketlogger was helping me tune the car but it just didn't work. I have the stocker 450cc's in there now and the car runs fine like usual. I'm just going to send these 550's off to be rebuilt since I got them for cheap anyways.

 

[psychlow]

Strange that it ran fine for awhile and then started acting up.... that doesn't make a ton of sense....

 

[doodie]

Strange that it ran fine for awhile and then started acting up.... that doesn't make a ton of sense....

They were used 550cc's and I did have them sit around for quite a while. I think the thing clogged up after running it for a little.