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Tuner in Training
8.1 injector help please
Hi all,
I have a 2006 Sierra 5.3 bored to a 5.7. Found some of my injectors were leaking and bought some 8.1 injectors after some recommendations.
I installed the 8.1 injectors, but I cannot get the truck to run right.
I am not looking for a tune, I am just begging for some help to get the truck to run normal so I can get to work tomorrow without having to swap my crappy stock injectors back in.
I had changed the injector data to match a stock 8.1 Flow Rate, Offset, and Short Pulse Adder with no luck. I had also tried the "Limits" section as well with no luck. Truck will run, but you try to give it any sort of throttle it bogs down.
Thank you to anyone who may be able to help me.
8.1 injector.hplCamaro tune 5.7 3 w 8.1 fuel injc 2.hpt
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Advanced Tuner
Is that the only thing in the tune you changed?
What about engine size?
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Which '8.1 injectors' - truck 8.1 or marine 8.1? Do they have any part numbers on them? Are they real genuine injectors, or the Chinese copy Amazon/eBay version of 8.1 injectors?