- May 27, 2016
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My wife and I both have 2005 mustangs. Both are GT 4.6. Her battery died and would not start the car. I replaced the battery with a Optima red top and car started. Unfortunately the vehicle will only idle at this point and is in failsafe mode. I pulled the codes off of the computer and had a P2104 and a P2112. When I bought her car it did not have a stock ford throttle body on it. Someone had replaced the original throttlebody with an aftermarket unit and cold air intake. I have removed the throttlebody and cleaned and inspected. Cleared the codes. Both of the codes come right back.If someone could point me in the right direction other than Towing to a dealer would be greatly appreciated!