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Old 08-09-2013, 09:45 PM
1999xlt 1999xlt is offline
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Default PATS system preventing start

I just bought a 99 ranger 3.0 flex fuel with a bad engine. Also the computer that goes in the engine side of the firewall on the passengers side was missing. I had a wrecked 99 Ranger 4X4 that also had a 3.0 flex fuel engine in it. Both trucks have the PATS system. We took the engine from the wrecked 4X4, along with the computer, ignition lock and key and put it in the 2-wheel drive. Now it won’t run. The starter won’t turn. If I use the original 2-wheel drive ignition lock and key, the starter turns, but it won’t start. The injectors won’t fire.
I have the engine, computer, ignition lock with key, that all ran together a few days ago. Why won’t they communicate now? I even changed the PATS sensor that mounts to the bottom of the steering column just below the ignition key. There has to be another part/component there that it needs to communicate.
Can anyone help me with this?
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Old 08-09-2013, 11:06 PM
LilRanger93 LilRanger93 is offline
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Default Re: PATS system preventing start

Did you change over the wiring harness from the wrecked ranger along with everything else you did?
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If want real power you need to Plasti-Dip the entire engine including the valves and bearings, that's good for up to 150 horsepower.
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Old 08-10-2013, 08:21 AM
1999xlt 1999xlt is offline
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Default Re: PATS system preventing start

I replaced the engine wiring harness, but there are differences in the under dash harness. Do I need to change THAT?
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Old 08-10-2013, 08:17 PM
wvcat wvcat is offline
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Default Re: PATS system preventing start

You need to change the theft module behind the passengers side air bag.
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Old 08-11-2013, 05:38 PM
1999xlt 1999xlt is offline
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Default Re: PATS system preventing start

Thanks John, I knew there had to be another component there somewhere, I just didn't know what or where.
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  #6  
Old 08-12-2013, 12:22 PM
rangerlocal rangerlocal is offline
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Default Re: PATS system preventing start

Yep, he nailed it. It shouldn't even recognize the key without that module being swapped.
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