94 Suburban ODB Code 22

This code is:
Throttle position (TP) sensor -voltage low Wiring open circuit/short circuit to ground, TP sensor, ECM
This only happens after the engine comes to full operating temperature, then the vehicle has been turned off, and allowed to sit for about 10 minutes. Once the engine is again started, this is when the code appears, and bad performance ensues.
I am sure it is some corroded wiring somewhere, but suggestions on what to look for? Wiring around the engine perhaps? Could be something beside wiring?
Thanks!
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wrote:

Could very well be a bad TPS
google 1994 gm TPS problem. All you ever wanted to know and more abourt this VERY COMMON problem. Slight possibility of a wiring problem, but those 93-94 TPS units are dropping like flies.
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