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theft light flashing fast, changed computer

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Old Jul 25, 2014 | 02:25 PM
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theft light flashing fast, changed computer

Hey my 2000 Explorer overheated and I had water pump and intake manifold replaced.. then it had a freeze plug rust out and its replaced, I'm holding water.. but now it just wont start.. we've tried everything from changing fuel injectors, fuel delivery unit on intake, now the fuel pump is changed.. still wont start and the theft light is flashing fast.. my dad changed computers while I wa out of town,, is it the theft device or does the computer need coded for this explorer?? we have taken negative off battery but nothing.. any ideas... and if I change the motor will that help or still not run because of theft light or computer??
 
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Old Jul 25, 2014 | 03:11 PM
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You need to put the old computer back in. It's an integral part of the anti-theft system and cannot be simply swapped out.

If you actually NEED the new computer, then your only choice is to either tow the vehicle to the Ford dealer or to call a mobile locksmith to re-program the system so it works with your existing keys.
 
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Old Jul 26, 2014 | 10:45 AM
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What Project said above is correct. The PATS system is paired to the ECM. If you replace the ECM (or PATS module) the new device needs to be programmed to be compatible.

-Rod
 
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Old Jul 31, 2014 | 10:25 AM
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thanks guys, I changed the computer back and it started first try.. I checked which codes were on the engine now and just gotta clean the MAF and it should take care of that.. appreciate your help
 
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