2002 Z06 Corvette OBD2 code P1514

Question

I just had my 2002 Z06 with a Magnuson supercharger tuned and remapped. It ran fine for about 50 miles then it started to die when I pushed in the clutch to slow down for a stop sign. The engine RPM dropped to 300 rpm then jumped up to 1000 rpm then back down and died. The car started right up but the engine rpm fluctuated for a few moments then evened out. On the highway the car ran smoothly but when I would slow down to stop it would sometimes repeat the same rpm drop. I shut the car off for about 3 hours then started it and drove for about a mile under moderate throttle when the engine went into limp home mode and the check engine light came on . I shut the car off for about 5 minutes then restarted it and the throttle returned to normal and shortly after, the check engine light went off. I scanned for a code and found the trouble code P1514 (air flow to TP sensor correlation high). What problem does this indicate? When I got the car home, I cleaned the MAF sensor with MAF sensor cleaner although it didn't appear to be dirty. I also cleaned the Blackwing air filter assembly which was dirty. I haven't started the car yet as I am waiting for the air filter to dry.

Answer 1

Check to see if the throttle body wire was not rubbing on a pulley, also disconnect the throttle body connectors, check, reconnect.

Check and see if the throttle plate is dirty, if so you can clean it.