help with not idling after stop when coming down from 40mph or higher

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i have a 6.0 ls which if you drive easy its ok when you decelerate from above 40mph it will chug and die at complete stop unless you feather throttle at stop alittle then will stay idling but will start right up if dies plz help

[gtstorey]

As always, tune and log needs to be posted.

[edcmat-l1]

FFS how can anyone help without a tune file and data log???? Seriously......

[blindsquirrel]

FFS how can anyone help without a tune file and data log???? Seriously......

It's a 6.0 LS, aren't they all the same? You guys must not know much about how these things work.

[edcmat-l1]

It's a 6.0 LS, aren't they all the same? You guys must not know much about how these things work.

That's why I got this!!!! Muhahahaha!!!!!

businessman-looking-into-crystal-ball.jpg

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gary 6.0.hpl

its also running very lean to lean to drive dont want to hurt anything i have 52psi fuel pressure which is oem specs any help plz

original tune 6.0_CL_Enabled.hpt

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Tune posted sir

[[email protected]]

Tune and file posted sir

[Alvin]

You won't hurt this setup being too lean.

The drivers side o2 sensor looks suspect. The fueling needs to be gone over.

[edcmat-l1]

You have something going on with bank 1. It has the fuel trims pegged at +50%. Need to check the header temps with a temp gun. Might have multiple dead cylinders on that side causing a bunch of raw O2. Bank 2 is not near as bad.

[[email protected]]

did some testing found plugs were black and wet replaced plugs checked compression have 180 across the board. have no cylinders missfiring and have 52psi fuel pressure and it still buries my fuel trim to positive 50 is there a chance i can ajust my numbers in ve table in this area to lower my trims or not work that way plz help also have no vacuum leaks any suggestions plz

[bk2life]

any suggestions plz

Every change you make, such as replaced the spark plugs, you need to run a log and post it here for us to see.
Your tune and your data log needs to be posted.

Or else we are like slow-poke rodriguez,nothing gets done.

But yes, altering your VE table, and your MAF, and your timing, and your BRAF and a few others all control how rich it is.

[edcmat-l1]

Why are you starting a second thread for the same exact scenario? Stop it. Keep everything in this one thread.

[edcmat-l1]

did some testing found plugs were black and wet replaced plugs checked compression have 180 across the board. have no cylinders missfiring and have 52psi fuel pressure and it still buries my fuel trim to positive 50 is there a chance i can ajust my numbers in ve table in this area to lower my trims or not work that way plz help also have no vacuum leaks any suggestions plz

Where is your current data log after having replaced the plugs????