PCM/Fuel Pressure Regulator Replacement
SOURCE:Honda Service News January 2004
TITLE:
Ordering Replacement PCMs
APPLIES TO:
2000 Accord V6
SERVICE TIP:
During the 2000 model year, the factory changed the fuel pressure regulator and the PCM in 2000 Accord V6 4-door models (from VIN YA076104) and 2-door models (from VIN YA035748) to improve engine starting after hot soak. The new fuel pressure regulator is set to a range of 48 to 54 psi instead of 41 to 48 psi, and is marked with a black dot so it's easy to identify. The new PCM mounts with three bolts instead of two.
The PCM and fuel pressure regulator must be matched to each other; otherwise, performance drops over time and the MIL eventually comes on. When ordering a replacement PCM, make sure you're ordering the unit that's matched to the fuel pressure regulator installed in the vehicle.
To keep things straight, check the fuel pressure regulator for a black dot. If you see a black dot, order PCM P/N 37820-P8C-A55, H/C 6828479. If you don't see a black dot, then order P/N 37820-P8C-A53, H/C 6358469.