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autoenginuity results help

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Old Oct 5, 2006 | 05:40 PM
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mustangz911
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From: greer sc
autoenginuity results help

wow all i can say is wow.i have been doing diagnostics on cars for 10+ years and this is one of the best setups for the money i have ever seen.im new to diesel though.i need some help on what i found on my truck.i did a cylinder contribution test and #3,4,7 did not pass.i guess that means the injectors are week?it had a air temp sensor code also and it was stuck at 390 degrees the whole time on the live readout,this has to be a problem correct.i also had up to 25psi of backpressure on the exhaust is this ok?one more ?i only saw 13psi of boost one time is this also normal.thanks guys
 
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Old Oct 5, 2006 | 05:47 PM
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From: AZ
The weak injectors could cause the lower boost, I think 15-16 is normal for a stock truck.
The exhaust back pressure sounds high, you might have a clogged cat.
 
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Old Oct 5, 2006 | 06:01 PM
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From: greer sc
thank you sir
 
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