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bad fuel injector???? How to electrically test an injector?? 700 1985

85 760Ti, B230ft, auto, 223k - Went to start it last night to leave work, and no start - tach jumps, can hear fuel pump and smell fuel - disconnect AMM, no help. Now there is a very strong fuel smell and I noticed that there is fuel dripping off the bottom of the turbo. Got the car towed home, put a new fuel pressure regulator on this morning and still the same problem. After it has been flooded, I can get it to start by pulling the fuel pump relay, then it will run for a few seconds while it uses up the extra fuel. Put the relay back in and it will not start again and flood. I'm thinking now that I have a bad injector that is stuck open. I pulled all the plugs to see if I could determine which cyl, but they all looked soaked. Then I disconnected each injector one at a time and tried to start. When I got to #3, I was able to get it to start, so I let it run for a moment to charge the battery, then decided to plug #3 injector back in to see if the problem got worse. As soon as the plug went on, it died, didn't stumble or seem to go rich, it just died. I was able to restart again with #3 disconnected, so I'm pretty sure that is my problem injector. Is there any way to test the injector with a meter? Should it have a certain resistance, or will a continuity check do anything? This is a stock green top "357" injector, probably original to the car. Any other ideas?? Thanks John






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New bad fuel injector???? How to electrically test an injector?? [700][1985]
posted by  Bunch_of_Bricks  on Thu May 13 04:17 CST 2004 >


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