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What am I missing?

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Old Dec 16, 2010 | 07:38 PM
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MSS91Z28's Avatar
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Default What am I missing?

So I just installed a fast 90mm and an LS2 90mm throttle body on my '02 Z06. Then I got it tuned and all was good and the car ran great.

Long story short the throttle body I put on I was only temporarily borrowing from a friend so I had to return it to him after only about a week of using it. The next week (yesterday) the ls2 throttle body I ordered for myself arrived and i installed it.

The car seems to run fine but I am getting these codes now-

P1220 TP sensor 2 Circuit –A
P0153 Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1-A
P1516 Command vs Actual Throttle Position performance (TAC ,module) -A


BTW I'm using a harness adapter I ordered online from corvette central and I double checked that everything is hooked up correctly after the throttle body install.

Any idea's why these codes would suddenly pop up?

Thanks in advance!
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Old Dec 16, 2010 | 08:30 PM
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Maybe its an LS3 90mm throttle body.. I heard they will give a C5 problems and you need to make sure its a LS2 specific throttle body..Other than that or a bad connection...Or maybe low voltage on the battery. Low voltage on a battery will throw all kinds of crazy codes..
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Old Dec 17, 2010 | 03:07 PM
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There's a conversion harness you'll need I believe that makes the C5 think it's a C5 throttle body.
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Old Dec 21, 2010 | 07:49 PM
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Originally Posted by SCM_Crash
There's a conversion harness you'll need I believe that makes the C5 think it's a C5 throttle body.
Already have that. That's the harness adapter I stated in the first post.
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