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Old 03-12-2015, 06:56 AM   #1
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96 cobra loww idle

Ok I have asked about this a year or so ago but recently found something new. I have a 96 cobra with no down stream cats but have 02 sensor trickers on the upstream 02s and for 10 years car ran perfect and no cel. Well now i have a cel saying the upstream 02s are running to lean and the idle is between 500 to 800 and it surges between those. Have done all the obvious stuff new Maf, iac, 02 sensors, new 02 sensor trickers, distributor, new vacume lines and some othet things i cant remember been tring to figure this out for over a year. The new thing is I noticed when i start the car on a warm morning it idles good for a short time ans during that time the ccrm in humming and when it stops humming the car idels up to about 2k then slowly drops to low surging idle. Can the ccrm been causing this issue the whole time?

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Old 03-15-2015, 10:00 AM   #2
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Join Date: Oct 2010
Location: Northern Virginia
Region: Virginia
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Alternator comes to mind and electrical connections to it and everywhere else, but I am NO expert. Vacuum line is first thing i thought of but you covered that.
Did you ask your Mustang shop over the phone? Might help.
I wish i could help more. Please update so u can educate me, Good Luck!!!
'97 3.8L V6
Pacific Green
1996 SVT Cobra White
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