Check engine light on start up this morning, runs fine. Same on next 2 cycles then light out on 4th start. Running normal doing an errand run around town. Found the P0123 TPS voltage when I got home. Searching finds everything from IAC to clock spring. I cleaned the IAC and throttle body and sprayed contact cleaner in the connectors. Anything I can do preemptively to find/fix this before it causes a problem when I'm 50 miles from home? thanks