Final update...I hope.
Double checked the fuel system, spark, O2 sensors....all was good.
Checked timing and seemed to be too advanced...firing just after TDC. Pulled the timing belt and checked the alignment...replaced with new belt....buttoned her back up. Fired her up and idle was down to 1250-ish. Grounded out the IAC and adjusted the idle to 750....and she purrs...
We couldn't get the idle down before...I guess it was just too advanced. She runs great now...very responsive to gas and the exhaust temps are back to normal range.
She runs so good I briefly contemplated selling my blue wagon and keeping this one....but I like the blu better as its not as common of a color.
Thanks for the help guys in figuring this out.
Review: timing was off, replaced belt/adjusted gears to marks, and adjusted idle to 750
Chris
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Chris M. 1986 245GL. '85 245 w/ 414,765+ miles. ***SOLD***
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