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1988 GMC 5.7 I would like to program the computer.Can't


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RCOLLINS
New User

May 7, 2009, 4:06 PM

Post #1 of 4 (1796 views)
1988 GMC 5.7 I would like to program the computer.Can't Sign In

I have a 1988 GMC Sierra 5.7L which has been modified with headers, and cold air injection. is there no way to reprogram the computer to change the parameters. I am looking to gain more fuel economy and horsepower.

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(This post was edited by RCOLLINS on May 7, 2009, 4:10 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 8, 2009, 1:29 AM

Post #2 of 4 (1780 views)
Re: 1988 GMC 5.7 I would like to program the computer.Can't Sign In

You have an OBD1 computer. These are not programmable computer however they have a personalization chip in them called a PROM. These chips can be purchased with various modifications made to them. Just do a Google search on "Performance Chips" and you will see what's available for yours.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



RCOLLINS
New User

May 8, 2009, 2:57 AM

Post #3 of 4 (1778 views)
Re: 1988 GMC 5.7 I would like to program the computer.Can't Sign In

Thank you, I will do that.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 8, 2009, 3:21 AM

Post #4 of 4 (1775 views)
Re: 1988 GMC 5.7 I would like to program the computer.Can't Sign In

Just keep in mind that your asking for opposing features. Fuel mileage is generally a sacrifice for more power.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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