LS swap questions

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roundhouse

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atlanta ga
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justin
Truck Year
77,78,79,80 ?
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K10
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350
Either is fine, I'll help the best I can.



It can be removre, or fractions of it removre with any trans.
My LS swap is a 02 5.3
Had the computer done a couple years ago and been driving it daily since then

When you crank it , the engine revs up to about , I guess 1300-1500 for about one to two seconds then slowed back down to a normal idle

This is very annoying
Any easy way to correct it ?
Or is that a major software reflash ?
 

Jrgunn5150

Questionable methods
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Ionia Mi
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J.R.
Truck Year
1979
Truck Model
C10
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6.slow
My LS swap is a 02 5.3
Had the computer done a couple years ago and been driving it daily since then

When you crank it , the engine revs up to about , I guess 1300-1500 for about one to two seconds then slowed back down to a normal idle

This is very annoying
Any easy way to correct it ?
Or is that a major software reflash ?

Was it tuned at that time? Or just VATs deleted so it would run?

And does it do it if you start the truck with the IAC unhooked?
 

DavesJimmy

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David
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1976
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Jimmy
Engine Size
350
Does the doner vehicle have to be a truck/suv? Or can it be a car too? :patriot:
 

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