Question

Does the 2005 Toyota Tundra 4.7L have 1 air injection pump or 2 where is bank 1? I got the engine codes P2445 and P0418

Answer 1

The 2005 Tundra 4.7L engine only has  one air injection pump.The air pump and the rest of the system to include one electric air switching valve and two vacuum actuated air switching valves are completely contained underneath the intake manifold.

One of our Gen-I V36H bypass kits with a kit addon called a Pump Proxy Pack can resolve your problems without removing the intake manifold or replacing all the expensive system components which will typically fail again. You can find the GenI kit and addons here: Hewitt Tech GenI SAIS Bypass Kits

Answer 2

P2445 TOYOTA - Secondary Air Injection System Pump Stuck Off Bank 1
Read more: https://www.autocodes.com/p2445_toyota.html

P0418 TOYOTA - Secondary Air Injection System Relay 'A' Circuit Malfunction
Read more: https://www.autocodes.com/p0418_toyota.html