Secondary air injection system overhaul

If the secondary air injection program exam method malfunction , the engine temperature boosts, it does not pump air into your KP819 key programmer exhaust port , HC emissions also increased. When testing the secondary air injection procedure , really should note the subsequent:

diagnosis of secondary air injection method , to start with examine all vacuum hoses and connections around the process circuit .

Besides air pump at the rear of the pulley contains a centrifugal filter, air filter will circulation by the pump following the dust filter . Filter bolted pulley and also the shaft , respectively overhaul. If the pulley or filter bent, worn or damaged , it ought to be changed.air pump ought to have a certain belt rigidity . Pulley unfastened will cause the secondary air injection technique is not really sbb key programmer performing properly , resulting in improved exhaust fuel factors or abnormal fuel usage .reduction valve secondary air injection technique ( whose function is in the event the procedure is clogged or also a lot resistance , launch the stress to prevent air pump pressure is simply too higher ) and some even within the bypass valve and diverter valves , and some even inside the air pump . If the aid bmw icom sale valve is trapped from the open situation, the air move from your air pump to constantly discharged by way of the valve , ensuing in increased emissions of damaging gases.

If the secondary air injection program hose burn up sign , which suggests a leak check valve , the exhaust gasoline to the method .leak air manifold and exhaust pipe could potentially cause leakage and deliver lots of sound .Should the bypass valve , the bypass solenoid valve plus the corresponding conductors is faulty, the air movement from the air pump or perhaps a constant countercurrent ( air move from 5054a review the pump for the discharge port ) or downstream ( from the air pump flows on the catalytic converter ) , secondary air injection technique fault codes might be set from the engine control device. All fault codes need to be made use of to check the fault diagnostic and relevant secondary air injection technique . Right before the program even further diagnosis need to recognize the reasons for these codes .

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