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Old 02-25-2011, 06:11 PM   #3
Jonboy
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Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
Re: converting back

That doesn't look like an '87 wiring harness to me. The plug in the last pic looks like a TCC plug, should go to the trans. The solenoid on the firewall looks like a vacuum switch for the TCC, '87 should not have had this; TCC is controlled by the ECM. The middle picture plug looks like it might be to a diverter switch on the AIR injection.
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