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98 chevy 4.3 wiring

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Jul 2, 2005, 8:52 PM

Post #1 of 4 (2172 views)
post icon 98 chevy 4.3 wiring Sign In

Hi I have a 93 chevy 1500 truck I going to be replace the 4.3 motor with a 98 4.3 vortec what do I need to do with the wiring ? do I just replace 93 wiring with 98 wiring from the firewall on out or will all the wiring from the computer on out need to be replace?


Jul 3, 2005, 2:08 AM

Post #2 of 4 (2166 views)
Re: 98 chevy 4.3 wiring Sign In

This is the kind of thing that gives mechanics nightmares. I wouldn't touch your truck with a ten-foot pole. Your 98 engine requires a different ECM and wiring harness than your 93 truck. I shudder to think of the head-banging frustration of trying to cobble the two together. Far better to just trade up to the truck you want.


Jul 3, 2005, 6:22 AM

Post #3 of 4 (2165 views)
Re: 98 chevy 4.3 wiring Sign In

Thank you I can get a 98 wiring harness with the computer if I need all this

Tom Greenleaf
Ultimate Carjunky / Moderator
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Jul 3, 2005, 7:53 AM

Post #4 of 4 (2163 views)
Re: 98 chevy 4.3 wiring Sign In

Just my thoughts on this: You are opening "Pandora's Box" and will probably have endless headaches from this. Think hard about the task. Wish you luck, ---- No hard feelings, let us know what you do and how you made out, best,

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