Help isolate fuel problem
#1
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Help isolate fuel problem
So #3's plug is wet, car runs like its on three cylinders, and it's getting spark. How should I go about isolating this problem to the injector or the computer?
Back in November I was at the track and the fuel pump decided not to prime. I jacked with it for hours, then it magically worked and has worked since. However, it's basically run on three cylinders ever since. I have no idea what's going on but now my arm is finally strong enough to turn a wrench so I can work on it.
If a driver were hung open on the injectors would fuel flow when the car is not running but pump primed?
Back in November I was at the track and the fuel pump decided not to prime. I jacked with it for hours, then it magically worked and has worked since. However, it's basically run on three cylinders ever since. I have no idea what's going on but now my arm is finally strong enough to turn a wrench so I can work on it.
If a driver were hung open on the injectors would fuel flow when the car is not running but pump primed?
Last edited by hustler; 02-28-2014 at 01:40 PM.
#2
If you're not running sequential, it seems like you could swap injectors between the cylinders and injector harness plug between cylinders. I remember reading a JP write-up on how the MS injector firing worked somewhere. If you can do this, see if it follows the injector or the harness plug??
Just thinking out loud, BTW. There's probably a better way.
Just thinking out loud, BTW. There's probably a better way.
#8
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Not sure how to check an injector other than removing it and seeing if it's leaking/spraying with the car off.
#9
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Is there any reason why the plug would fire outside of the engine, but not when screwed in? I'm a little confused right now, something is not right but I can't tell what or why when using a multi-meter. I guess it's time for the lights.
#11
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To output test mode I go!
#14
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When I test the coils I see .5v on coil A (#1/4), .2v on coil B (2/3) measuring both at the OEM connector, coils obviously unplugged since I'm not talking about electrical shock. Thoughts?