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buzz test ?

Old Jan 14, 2012 | 10:47 PM
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carltonwebb
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buzz test ?

What is the long buzz before it fires each individual injector? IS it all the injectors or something else?
 
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Old Jan 14, 2012 | 11:00 PM
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If your are talking AE, Than AE fires all 8 injectors first than each one individually.
 
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Old Jan 14, 2012 | 11:15 PM
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Snap on solus but IDS makes the same sound so I figure its all the same.

If my 2000 makes a crisper sound than my 2001, I suppose that means the injector solenoids are in better shape? All the solenoids check fine on the 01 and I am in process of changing inj orings. . Did not finish it today so maybe tomorrow. I had never done the buzz test on the 2000 so I did it and noticed its crisper and slightly louder. Also, the PERDELS are all running 0% on it and it passed contr test. The 2001 failed #8 contr test and also runs 10% PERDEL on that cylinder. I know some trucks will do that so I am not terribly concerned. I have to sell one of the trucks and I was just making some comparison checks on the two. I did find out that most likely my ebp sensor is bad/clogged as I am getting a p0470 and p0478 code on the 2000 now. The back psi is reading 40 at KOEO.
 
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