TBSS Intake install: P0171 & P0174

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04-21-2010, 11:52 PM

#11

JonCR96Z

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Quote:

Originally Posted by 007gmc

What size injectors did you tell him? TBSS injectors are 36lb so your tune is most likely set for 36lb injectors. If you intake came from a non TBSS like a 08 up flex fuel 5.3 then your injectors are actually 32lb and thats your problem. Ask me how I know

Where did you get that info from? From looking at some tunes all I see is that the TBSS has 29lbs/hr injectors and the new flexfuel 5.3s have 36lbs/hr.

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04-22-2010, 04:34 AM

#12

Cakes

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I told him I was using stock TBSS injectors. The P/N on the injector is 12580681. From what I have researched these injectors are the same for all V8 Trailblazers. I told him I was unsure of what they flow and he told me he used the injector information from a TBSS for my tune and that it was 38 lb/hr.

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04-23-2010, 07:30 PM

#13

low2001gmc

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Quote:

Originally Posted by 007gmc

what size injectors did you tell him? Tbss injectors are 36lb so your tune is most likely set for 36lb injectors. If you intake came from a non tbss like a 08 up flex fuel 5.3 then your injectors are actually 32lb and thats your problem. Ask me how i know

how do you know??? I got ls2 injectors which i have heard are 33 lbs and others say 36-37 lbs. Really interested in how you know issue...also would appreciate anyone's elses experiences and solutions...