Yep, that and spreading the connectors in the 10 pin connections (The salt and pepper shakers) mounted to the back of the intake by the EGR valve are usually the issue with Idle problems. Also the IAC valve.
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 J. Chism
1989 Mustang LX 5.0, 5 speed (ex-TX DPS car)
#200882 unit# M9166- SOLD 
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