Steamfitter

I tried a search every way I could think of and can't find any thing,I know i had asked once before.
My 2001 Rodeo sport has been giving me trouble since I did a test drive after doing a brake job.
After stepping on the brakes hard the Red.Power lt came on.Now it is persistant,the truck sat for the winter and now I cleaned up all of the grounds in the engine compartment hoping there may be a bad connection.
It will idle nice,but after a very short drive no power(1 minute)
I pulled codes 1125,1295 and 1515
The first 2 are MFR controlled fuel and air metering
The last is mfr controlled vehicle speed ,idle ,aux input

Anyone out there have this problem?
Also with the gas pedal to the floor 3000rpm's is the max in neutral.
Thanks for any feedback SF