I have a code 43 in a Nissan Pathfinder 1988 VG30 6cyl MT 4WD. I changed the throtle sensor for a new one and I still have the same code 43. I rewire the new throtle sensor to the ECU with new cables and I still have the code 43. What else can be done to solve this situation?? The Pathfinder cannot accelerate more than 1800rpm. I need help !!!