those numbers actually sound close to normal..a little off, but close.
the 5.13 should be 5
0.8 should be .85
15% when your actually looking for 17% duty cycle
manual tranny specs.
its not the TPS per`se, its the input to the TPS thats giveing the problem- adjust the input down. Thats the top bolt for you-leave the bottom snuggish. Nudge the tps left or right from the top of the connector and retest for input voltage.
If it stays 5.13 volts, its the input wire (a)- it should be steady at 5 volts.
it really sounds like theres something in the ground circut causeing a higher than normal amperage draw/voltage needed-high enough to cause a problem, low enough not to pop fuses- water would do this, but only if it was in real close proximity to something with power on it- like the input from the TPS connector to the ICU connector...under the dash...where it got wet.
thou shat unplug thy connector and blow air into thee, and all shall be well.
or the computer is fubared...whichever.