What is a P2440 code?
P2440 code definition The P2440 diagnostic trouble code is an indication that the Powertrain Control Module (PCM) has detected that the switching valve of the secondary air injection system is stuck open on Bank 2.
What does the code P2441 mean?
What the P2441 code means. P2441 is an OBD-II code for the engine control module (ECM) detecting no exhaust pulse while monitoring the exhaust pressure sensor when the bank 1 switching valve is commanded to be open with the engine running. This will signal a fault in the system.
What is a secondary air injection check valve?
Secondary air valves are an integral part of the secondary air system. They are fitted between the secondary air pump (1) and exhaust manifold. They prevent pressure peaks in the exhaust flow from damaging the secondary air system and exhaust gas or condensate from entering the secondary air pump.
What does the error code p2440 stand for?
Error Code P2440 is defined as Secondary Air Injection System Switching Valve Stuck Open Bank 1. This indicates a stuck open problem in the switching valve of the secondary air injection system in Bank 1.
What does the p2440 code on a Toyota Tundra mean?
I have the P2440 code. It says Secondary Air Injection System Switching Valve Stuck, Open Bank 1. Is this the air pumps and is it covered under the 10 year, 150k warranty?
How does the p2440 Toyota air injection system work?
P2440 Toyota Description. 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. The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve.
How much does it cost to repair a p2440 Chevy?
The cost to diagnose the P2440 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.