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Old December 15th, 2011, 08:39 PM   #1
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Need Help With a Few Codes


So I did a motor swap. I swapped an 01 3.8 into a 99 3.8 because the 99 motor seized. Anyways it runs now but not the way it should. I've got three different CEL codes. Here they are:

P0743
P0750
P0755

Any help with telling me what the codes mean and what could potentially cause them is appreciated.
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Old December 16th, 2011, 12:15 AM   #2
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my haynes manual is out in the car. but if no one finds them before i do i will post them up tomorrow sometime.
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Old December 16th, 2011, 12:16 AM   #3
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Great thanks man.
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Old December 16th, 2011, 12:31 AM   #4
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P0743: Torque Converter Clutch Circuit Electrical
P0750: Shift Solenoid 1 Circuit Malfunction
P0755: Shift Solenoid 2 Circuit Malfunction

Sounds like you have bad harness connection to the transmission since your throwing 3 different transmission codes, check over all of your wiring and look for any lose connections or places where you may have pinched or broken the harness during the engine swap.
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Old December 16th, 2011, 12:57 AM   #5
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Okay thanks. I'll jack the car up tomorrow or saturday and figure that shit out. I dont know how i could have messed up that many connectors...
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Old December 16th, 2011, 01:50 AM   #6
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also if you have a smart phone go to your apps store and download a free obd2 app...it's how i pull up codes on the go
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