Thread: 1990 Chevy TBI Drawings

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I recently acquired a 1990 GMC Suburban with a TBI 454. I'm going to transplant the entire setup - engine, sensors, computer and so on into my '69.
I know that Painless makes a wiring harness that would make quick work of it but I'm pretty good with electrical and would rather save the dough and use the factory harness. It's an in-between model year and what I can't seem to find is a decent drawing for it. The Haynes book for 67-91 Suburbans ain't even close. The Chilton book for 88-98 Suburbans is close but still lacks alot of drawings I would like to see. I know I could probably find them by spending the big bucks on the entire Chevy or Chilton Service Manuals but I thought I might check with the good people here first. Does anyone have the wiring schematics for this vehicle or can point me in the right direction. I would greatly appreciate the help.

check here, there is a lot of useful info.http://www.fullsizechevy.com/forums/

Get the real factory manuals from Helm, Inc. You can Google for them. The other manuals are fakes.

Thanks for the replies. I still haven't found much in the way of drawings but I'll keep looking. It seems to me they are one of those things no one wants to give up on the net and I really don't want to buy anything on the net when I'm not sure it will be what I want.

I'll look when I get home, I may have something on it in one of my Helm manuals.

Thanks guys I appreciate it.
I was wondering about that All Data thing and how it works. Is it an On line manual that is good for a year or something, do you know? Can you download and save information? Autozone has it for $27 and it has to be better than the paperback Haynes for the same price if that how it works.

Since the shop manuals and wiring diagrams are the ONLY "pork" that is not included in the stimulus package, here is a simple tip.....go to EGAY.com and find their search page and type in "shop manual" and "chevrolet" and 1990. Press ENTER. A screen will pop up with several shop manuals that are for sale.

Please dont buy the cheap Chilton or Motor manuals...they are junk and are written to be generic.... not specific for a model.