First, you have to check your right bank O2 sensor and the circuit. There's a definite failure that could be either the sensor, connector, wiring or computer.
Then you should do a complete fuel system check. Start with pressure check (Key on/engine off) This will tell you the general condition of the fuel pump. Also while in this state, observe for any leak down. If after 15-min you don't have any leakage, move to the next step. If you do, then you'll have to isolate the cause. (Leaking fuel pressure regulator, in-line check valve, leaking fuel injector)
The next step would be checking pressure with the engine running. If it's too low, then you possibly have a clogged fuel filter or leaking/faulty fuel pressure regulator. You'll have to isolate that cause.
Then you'll want to do a flow test on your injectors. (And see if one/more of them are dead)
Monday, March 15th, 2010 AT 11:08 PM