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Truck dies when coming to a stop, parking, or moving slow

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Truck dies when coming to a stop, parking, or moving slow

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Old 08-10-2018, 11:13 AM
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Originally Posted by jprevat View Post
The short term trims can do that and it's fine but your long terms absolutely shouldn't. If you look at the picture I put up you can see a little red marker above the white bar and a yellow one at or below it. That's how far my long term fuel trim fluctuates.

I only use my long term fuel trim to diagnose my problems.
what app do you use?
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Old 08-10-2018, 11:18 AM
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Originally Posted by 10thGenFnatic View Post
what app do you use?
I use torque pro. Its $5 but I have more than gotten my money out of it.
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Old 08-10-2018, 11:56 AM
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Originally Posted by 10thGenFnatic View Post
bought 2 of the "#94006"
Good job, shouldn't have a problem with those. As long as they shipped okay.
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Old 08-10-2018, 12:19 PM
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Originally Posted by Jbrew View Post
Good job, shouldn't have a problem with those. As long as they shipped okay.
i figured putting cats back on it would make it sound like stock, but it sounds just as good as it used to, but wish i didnt have problems out of the truck lol
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Old 08-10-2018, 12:23 PM
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Originally Posted by jprevat View Post
I can't shake the idea that this is iac related. When you shift out of park into drive does it die?
i just read that you can adjust a screw on the iac to help it compensate for air, is it true, since mine is only 2 months old
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Old 08-11-2018, 08:56 AM
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Originally Posted by jprevat View Post
The short term trims can do that and it's fine but your long terms absolutely shouldn't. If you look at the picture I put up you can see a little red marker above the white bar and a yellow one at or below it. That's how far my long term fuel trim fluctuates.

I only use my long term fuel trim to diagnose my problems.
i looked, and my long term fuel trim for bank one is steady at 8.59 at idle, and bank 2 is normal at 3.13
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Old 08-11-2018, 09:53 AM
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That tells me there is definitely a leak somewhere. Maybe just a split boot but something none the less. I haven't heard about the screen on the iac but it might be worth messing with. You ever get a video up on YT?
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Old 08-11-2018, 09:58 AM
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Also how much have you driven it since reinstalling the cats? Cz if you haven't driven it very far your LTFT can be from before you reinstalled them...

X2 on putting a video up on YouTube
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Old 08-11-2018, 09:23 PM
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Originally Posted by jprevat View Post
That tells me there is definitely a leak somewhere. Maybe just a split boot but something none the less. I haven't heard about the screen on the iac but it might be worth messing with. You ever get a video up on YT?
what kind of vacuum leak would cause just bank 1 to be high and not bank 2, i sprayed brake cleaner around the engine and it didnt stall at all, but idk
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Old 08-11-2018, 09:32 PM
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Originally Posted by 10thGenFnatic View Post
what kind of vacuum leak would cause just bank 1 to be high and not bank 2, i sprayed brake cleaner around the engine and it didnt stall at all, but idk
You've already been informed to quit doing that....your creating problems. That's not the way to find leaks, it how you are creating them.
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