Unlock Cleaner Emissions with Advanced Secondary Air Injection Systems

The purpose of the secondary air injection system is reducing hydrocarbon and carbon monoxide emissions that result from cold start conditions. An electric air pump forces fresh air into the exhaust stream just before the exhaust enters the exhaust manifold. This extra air supplies the catalyst with ... Codes 44 & 94 - AIR system inoperative - Air Injection. Check vacuum lines for leaks, & cracks. Disconnect the big hose from smog pump. Understanding the theory of operation and components of most secondary air injection reaction (AIR) systems and how to diagnose them. The 30 A fuse that's blowing is connected to the secondary air pump. I replaced the relay but this didn't help. So now I guess I'm faced with is short some ... An activated secondary air injection system leads to an increase in oxygen content in the exhaust (air flow from the secondary air pump). What Is Secondary Air Injection System? Secondary air injection (commonly known as air injection) is a vehicle emissions control strategy, ... Secondly, the secondary air injection system aids in the oxidation of unburned fuel and hydrocarbons present in the exhaust gases by providing ... It's probably not a massive issue. The secondary air pump operates when the engine is cold to put extra air into the exhaust to heat up the cats quickly. The PCM regularly checks how much air flows through the secondary air injection system. If the computer notices that the system isn't sending ...