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07-12-2007, 01:31 AM
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Need a pinout diagram for 89 caprice
I bought an 86 astrovan with an 89 TBI 350 from A caprice. It has the 89 ecm but has no wire for the I.A.T sensor. I need the diagram to figure out where to plug the wire for this sensor into the ecm.
Thanx in advance. 
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07-12-2007, 07:49 PM
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Doc here,
 Auto Zombie has complete manuals for your Van..pick up one there..about $21.00 Fazools each.. You can also order them online, for about twice the price.. The local COUNTY MAIN public library is another good source for free.. Doc
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Aftermarket Solutions Electronic & Electrical Innovations
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07-12-2007, 08:05 PM
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Im in Canada, no autozone here. But thanks.
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07-12-2007, 08:34 PM
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Aftermarket Solutions Electronic & Electrical Innovations
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07-13-2007, 08:40 PM
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Doc here,
Here ya go:  Doc
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Aftermarket Solutions Electronic & Electrical Innovations
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07-13-2007, 08:57 PM
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Thanks
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07-13-2007, 09:01 PM
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Which diagram is this? It says 4.3L on top right.
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07-13-2007, 09:13 PM
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Doc here,
Body wiring dosen't differ that much if at all AND I thought that was what you needed.. I guess you just better order one online. Doc
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Aftermarket Solutions Electronic & Electrical Innovations
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07-13-2007, 10:32 PM
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Hmmm? Ya for some reason i cant seem to find an I.A.T sensor in the 4.3 diagrams. My van didnt have one originally but the caprice did.
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07-13-2007, 10:55 PM
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Doc here,
Sounds like you may have a problem if this is a swap.. a good auto electric shop is in order. Doc
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Aftermarket Solutions Electronic & Electrical Innovations
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07-13-2007, 11:12 PM
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The swap is done and it is running but he didnt add the wire to the harness and plug into the ecm for the I.A.T sensor. It sets the code for it and puts the computer in limp mode. It seems to run a little rich as well.
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