Toyota Tundra Secondary Air Injection Valve Stuck Open

To accelerate the activation of catalyst when warming up the engine the air injection system pumps the secondary air to the exhaust manifold by pressure.

Toyota tundra secondary air injection valve stuck open. If a P2442 code comes up a one-way check valve is stuck open in the secondary air injection system causing too much airflow into the exhaust and allowing hot exhaust gas to travel back into the pump. 97 Jetta Secondary Air Injection System Incorrect Flow the air pump is located on the engine towards the front of the vehicle and has apx. Cost was just under 3k to.

TOYOTA T-SB-0230-12 Rev1 November 27 2012 Page 3 of 8 Air Injection System MIL ON Warranty Information OP CODE DESCRIPTION MODEL TIME OFP T1 T2 4Runner 16 Land Cruiser EG1215 R R Air Pump Assy Sequoia 22 Tundra 17600. 2007 Toyota Tundra with 57 Liter iForce V8 engine 3UR-FE. I have a 2007 toyota tundra 47 has this code p2440 secondary air injection system switching valve stuck open bank 1 i woult like to know where is.

Secondary Air Intake System Fault code P0410 is set by a defective air injection pump this pump is electric on older cars it was called a SMOG PUMP and was belt driven by the engine. How to replace secondary air injection switching valve on 2008 toyota tundra - Cars Trucks question SOURCE. The official codes it threw were P1604 startability malfunction P1605 rough idling P2440 secondary air injection system switching valve stuck open Bank 1 according to Toyota dealership.

Start by checking the Possible Causes listed above. One of the lines on top of the air pump. My 2007 Toyota Tundra went into Limp Mode when multiple dash warning lights came on.

On cold start do you hear a hair dryer type noise from under the hood. Secondary Air Injection System Switching Valve Stuck Open Bank1 P2440-P2443 See More. If you have a 2005-2008 Toyota Tundra 47L with a code P2440 p2441 P2442 andor P2443 you may have a faulty air injection pump valve andor leaking supply.

Three parts video he gives a complete part list where the cheapest place to buy. And explains the process cost and steps needed to fiz yourself. This is how I fixed the Air Injection Switching Valve.