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sdtrader

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  1. I had this same problem a year ago. To make a long story short I needed to replace the Engine Computer found in the firewall under the hood. The #1 Coil (DG-520) , Fuel Injector (CM-5165) and all Spark Plugs (SP-411). What I discovered is that the #1 Coil lead from the ECU had a constant ground instead of a pulsed ground on pin #17 of the computer. This makes the coil stay on and overheat which causes the cracking and destruction of the coil. The P0301 code is saying the Computer driver for coil #1 is toast. Unfortunately, I 1st tried to just replace the coil and it smoked again so do not try this without replacing or repairing your ECU. Here are some very important things to know: 1) Only use Motorcraft Parts or the ECU will reject them. 2) Buy the Motorcraft Parts on Amazon they are way cheaper. Coils $60 Injector $43 Spark plugs $3.50 ea 3) I used a company on eBay named your_part_source for the ECU and it worked perfectly. Cost $195 4) Make sure to get the model number off of the ECU in your Vehicle to match it properly. 5) Send them your Vin# so they can program it into the new unit for you (No Charge) or else you will have to head to a dealer. 6) You will need to call a mobile locksmith to have your keys programmed to the vehicle security system (PATS) to allow it to start $60 7) Once you replace the parts and program the keys all the codes go away and the vehicle runs great. 8) A side note the AC stops working with this problem also and returns after the repair.
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