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Throttle Actuator Controller

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Old Nov 15, 2009 | 06:56 PM
  #1  
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From: Kempner TX
St. Jude Donor '08-'09
Default Throttle Actuator Controller

I have a '99 FRC with 49500 miles. Im throwing a code (P1516) and its driving me nuckin futs. The car stalls and a check engine light comes on. As soon as I let out of the gas the check engine light goes off and the car drives normally again. It only does it when I stab the gas really hard in the higher rpms.

I did have a battery acid leak but I got it cleaned up. It didnt make it to the wiring harnesses and I pulled the connectors out of the TAC itself and there is no intrusion what so ever.

Do TACs go bad after so long? I couldnt find a wire thats bad anywhere. What else could it be? Someone please help me out!!!

Daniel
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Old Nov 16, 2009 | 10:14 AM
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87SAM
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If there are no other codes, does the throttle body blade move smoothly and freely by hand?
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Old Nov 16, 2009 | 11:25 AM
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Sort of sounds like the blade isn't moving right away or sticking as suggested.
P1516 Command vs Actual Throttle Position Performance (TAC Module)

You might want to spray it out with brake cleaner or electronic parts cleaner. ELectrical connections to the stepper motor there? How about checking the connector at the throttle position sensor inside of the car. Just throwing thoughts out there.
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Old Nov 16, 2009 | 09:57 PM
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JDaniel
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From: Kempner TX
St. Jude Donor '08-'09
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Thanks, guys. I have checked all the connectors and they all seem clean. I will take a look at the TB though. Any other thoughts guys?
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