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99 Disco Won't Start HELP!!

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Old May 24, 2011 | 02:21 PM
  #11  
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Originally Posted by Chris-bob
Have you checked for spark at the plugs?
Yep, Nothings getting to the plugs or the injectors.
 
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Old May 24, 2011 | 06:24 PM
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Originally Posted by Disco Mike
Any signal or any codes? Crank sensors usually won't throw a code.
If it is the ECU, it is going to turn into a larger can of worms.
Ok so I just did something maybe I should've done to start with. I checked the ECU Fuse and it was blown. It had a 20 amp in there the book calls for a 10amp. I put a spare 30amp that I had in there to check it and it cranked right up. Should I be concerned about the fuse blowing as a sign of a bigger problem or maybe a ground problem.....Thanks for all the help so far, Rusty
 
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Old May 25, 2011 | 10:49 AM
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Yes. And you need to put a 10A back in there. It is there to protect the ECM. You are asking for a fried ECM if you keep anything larger than 10A in there. Might be a bad ground or....
 
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Old May 25, 2011 | 02:27 PM
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Originally Posted by Chris-bob
Yes. And you need to put a 10A back in there. It is there to protect the ECM. You are asking for a fried ECM if you keep anything larger than 10A in there. Might be a bad ground or....
So I put the right size fuse in it and it drove fine for about a 1mile then pop it went again. And has gone that way with every fuse I've put in since It burns the fuse out on each turn of the key. Someone said maybe the O2 censor or maybe the Air Mass Censor.
 
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Old May 25, 2011 | 04:51 PM
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Check your grounds. Something is causing a higher current draw than 10A. I doubt it is a sensor, but you should get erroneous readings from the sensor and throw a code(hopefully). More likely to be a ground with corrosion starting or wires rubbing against something and wearing the insulation off causing a short.
 
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Old Jun 3, 2011 | 12:40 PM
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Turned out to be a short in a O2 Censor wire heat guard had cut into it some how. Thanks for the everyone.
 
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