P0122 TPS Low Circuit Error

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SHUMME
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Need some help guys. My engine has a rough idle and when in-gear and attempt to accelerate from a stop, the engine seems to almost stall. The engine's stall almost feels like it's a massive transmission problem but I sure it's not. This only happens when I apply the gas. ODB error shows "P0122 Throttle Position Sensor/Switch A Circuit Low Input".

I've changed my spark plugs. Still. Changed fuel filter, still. Then I changed my TPS and now when I start my engine it sparatically adjusts from 1k-5k RPM. Any help would be great!

Also, does anyone know what sensor is located directly above the TPS? I'm starting to think that's the problem eventhough I don't know what it is.
Sep 13, 2006 at 7:20 PM
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SHUMME
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Forgot to include my specs....1999 Chevy Silverado 4.8L V8 2WD. Thanks!
Sep 13, 2006 at 7:21 PM