Originally Posted by sgb
I spoke with Honda - they said the throttle body was not opening and closing when it is supposed to.
code P1129 - map sensor
and the other problem was the pressure switch for the transmission.
They told me that this problem meant a new throttle body - any ideas from anyone? Could this have been caused at all by a service visit? Just very strange it happened when I left the garage. Could be coincidence - but very odd.
Thanks!
The MAP sensor detects the pressure in your intake manifold and converts it into an electrical code that the engine's PCM or ECM can read.
It costs $53 to replace and can be done in about 10 minutes.
It's the thing on the top of the throttle body. The Honda dealer is trying to dick you over, do this work yourself, unplug the battery, and see if the light is still on. If it is, go to autozone and get it read - you're paying the dealership $60 to "diagnose" a problem that we can do for free.