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Re: 87 GMC Sierra R3500 7.4L TBI vacuum diagram
Quote:
Originally Posted by Captain J
I don’t know a programmer in my country and I don’t have a chip, however
I did the light (LED flash light) and I captured it,
On YouTube
https://youtu.be/b3Uxt8WR5YM |
These computers don't work like or have the tuning ability of an LS/updated computer. A programmer has to burn a chip based on your combo or if it's stock it needs an original chip, or, you need a program to DIY.
I got mine from TBI Chips aka harristuning.com. My combo is mild so it has worked. I do have surging @ idle but it's not enough of an issue that I have done anything about it.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....
Cubic inches is like Indiana Jones with a cheap pistol.
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