badjuju Posted July 17, 2006 Share Posted July 17, 2006 Hey guys, this is a direct subpost from one of mine in the L6 forum... Here's a link. http://forums.hybridz.org/showthread.php?t=112744 Basically, my fourth injector shorted out on the ground side, turning it on for 30 seconds to 5 minutes each time the wire got near the ground. This was causing my afr to go down to 9.0:1 or so (LC-1). I fixed the ground as soon as I saw it, and the 9:1 crap stopped. Three days later, my afr is up at 20:1. I can't accelerate. Basically I'm having the same acceleration issues I was having before, except now it's reading 20 instead of 9. I'm wondering, uhh, what do I do? The resistance on all of them reads 2.7-2.8 ohms, and i'm wondering what my course of action should be... Is there a chance that it's still a bad injector though the resistance is reading right? my fuel rpessure is reading about 20 psi when the car is running. Quote Link to comment Share on other sites More sharing options...
Thumper Posted July 17, 2006 Share Posted July 17, 2006 Fuel pressure at idle should be around 30psi. Under no vacuum 37psi. First I would put a screwdrive up to every injector and make sure they are all firing. If they aren't then I would check your wiring. Find the injector that isn't working and switch the injector cap with another injector cap that is working. If that injector starts working then its the wiring if it still doesn't work then its the injector. Then you should with the car in the on position get 12 volts at every injector. If you are getting that then you need to trace the other wire all the way back to the ecu and make sure it hasn't been cut or grounded out. It could also be a clogged fuel filter, bad fuel pump, or fuel pressure regulator since you are saying you only have 20psi. So check those also. Quote Link to comment Share on other sites More sharing options...
badjuju Posted July 17, 2006 Author Share Posted July 17, 2006 I've got a new fuel filter and fuel pump in the car right now... ready to be installed, because i thought that the origional problem was being caused by the pump. Those won't be hard to do. The fpr is an easy one if i can find a z at the yard with a fuel rail on it (unlikely ) However, i'm confused by your reply, what do you mean by "put a screwdrive up to every injector and make sure they are all firing" Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted July 17, 2006 Share Posted July 17, 2006 Put a long screwdriver to the injector and the handle to your ear and see if it is clicking. If it is the injector is hopefully working. (You can do this with would, a mechanical stethascope, or pretty much any solid object). With the injector fully on from the grounded part you might have burnt up the solenoid, causing it to not work anymore. Mario Quote Link to comment Share on other sites More sharing options...
badjuju Posted July 17, 2006 Author Share Posted July 17, 2006 Still confused... where does the screwdriver go, and why would it click if i put anything up against the injector? Quote Link to comment Share on other sites More sharing options...
wheelman Posted July 17, 2006 Share Posted July 17, 2006 Touch the tip of the screwdriver to the injector body in a place that will not contact any wiring and place your ear on the handle. Do this while the car is running. When the injector opens it makes a clicking sound you can hear through the screwdriver. Listen to each injector, if one or more isn't clicking then the injector or the wiring to it is faulty. Use the method described by Thumper to determine if it's the wiring or the injector thats bad. If using a screwdriver makes you nervous a wooden or plastic rod works also. Wheelman Quote Link to comment Share on other sites More sharing options...
Forrest Posted July 17, 2006 Share Posted July 17, 2006 Unplug your starter and turn the key to "start" and hold it for a while and read your fuel pressure. It should go up to 36-37psi. If it's lower you need a new regulator. Quote Link to comment Share on other sites More sharing options...
badjuju Posted July 17, 2006 Author Share Posted July 17, 2006 Another question... umm, if one were to disconnect the line going to the fuel tank from the fuel pump, and no fuel were to come out, at all, completely bone dry, would that mean that one's tank was empty? ... Quote Link to comment Share on other sites More sharing options...
badjuju Posted July 18, 2006 Author Share Posted July 18, 2006 [dunce] yeah so i was outta gas. [/dunce] Quote Link to comment Share on other sites More sharing options...
Thumper Posted July 18, 2006 Share Posted July 18, 2006 [dunce'] yeah so i was outta gas. [/dunce] Oops. Well welcome to the club. Don't worry i'm a member. Glad you got it running though. http://forums.hybridz.org/showthread.php?t=106774&highlight=worse Quote Link to comment Share on other sites More sharing options...
badjuju Posted July 20, 2006 Author Share Posted July 20, 2006 next stop, working fuel gauge. Quote Link to comment Share on other sites More sharing options...
savageskaterkid Posted August 7, 2006 Share Posted August 7, 2006 Been there, done that. Did you know that if you leave a line dripping-not much, just drippin-it will drain a good 2-3 gallons out of your tank over night? I know this now. Quote Link to comment Share on other sites More sharing options...
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