Last year one of the fuel pumps died on this 2003 Vanquish V12. I replaced both pumps and all was well. Now the left bank is dead. Fuel pressure is normal on both banks but the injectors are not clicking on the left bank. I am thinking either the triggering pickup or the ECU are giving problems. Any help in a direction to check would be very much appreciated.

 

I am getting a lot of mixed codes. Main one that keeps showing up is the fuel pump controller module. However, it does not tell me which one so maybe there is just one on the car. There are two fuel rail sensors and two pumps that are totally separate on the car to would be surprised if only one module. Thanks for the offer of a link to a Aston Martin specific manual for OBD codes. I would appreciate it.

 

Post on the NP Vanquish sub forum at AMOC.

 

The code that keeps coming up is P-1585 which is the throttle control malfunction. I read on the Aston Martin forum UK that it could be low battery. The battery is new so I disconnected it, put it on a charger overnight and crossed the positive & negative to remove any static memory. When I started it today, same code came up along with restricted performance, same as before. As it is the left bank that is not firing the injectors, I would assume that it would be the left throttle. Hopefully someone has experienced this and can shed some guidance. Thanks in advance...

 

Any resolution to this?

 

Just a guess on the V12, check the fuel injector fuse.