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Old 07-13-2015, 01:59 PM   #1
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Join Date: Dec 2014
Location: Inland Empire
Region: California
Posts: 208

I recently installed a new plenum on my 02, and when it was time to start it up, it started to idle. Before it started idling, my car turned on fine, and it wasn't until it warmed up that it started idling rough, ready to turn off. I removed the plenum, put it back on to see if it was my mistake. Same problem. Is this related to the egr valve, idle valve control or both?

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Old 07-13-2015, 05:52 PM   #2
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Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 15,297
Check all your vac lines.
2000 Mustang GT Steeda build #48. Bolt ons, suspension, Novi 2000.

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
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