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I'm having some issues with a 95 blazer hoping y'all can help. It's been sitting since 07. I began with a crank but no start and started with the fuel pump which was rusted to death and obviously bad. Cleaned tank and new fuel filter but still no start. Checked fuel pressure at manifold which a pretty steady 60#. I cracked open the intake to check the spider injector. I hooked up a noid light and I'm only getting injector pulse for about three seconds. Will only do that once unless you unhook battery. I read that the security could cause a similar situation but after a call to the best local locksmith they say it does not take a chip key so what else could be my problem. Thanks in advance


   
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Location: Oregon
do you have spark the whole time you are cranking? or does the spark disappear too?

you should use a scanner and verify you are getting a cam and crank sensor signal


   
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It has spark the whole time it will run on ether. I have scanned it with obd2 reader and there are no codes no check engine lights


   
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might have to use a graphing multimeter or a lab scope and see what is happening with the signals that control your fuel injector pulse.


   
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