SAI pump runs at start up when it's 85+ out?

[Plain2000DII]

Why would the SAI pump run at cold start up when its 85+ degrees out? Doesn't seem normal, although it's started sqealing so maybe I didn't hear it before? Is there a sensor that triggers the SAI to run?

 

[jafir]

When the engine is started, the engine control module checks the engine coolant temperature and if it is below 55° C, the ECM grounds the electrical connection to the coil of the secondary air injection (SAI) pump relay.

 

[KyleT]

When the engine is started, the engine control module checks the engine coolant temperature and if it is below 55? C, the ECM grounds the electrical connection to the coil of the secondary air injection (SAI) pump relay.

and whenever else it determines that it wants to run.

 

[pdogg]

it's over a hundred degrees here in phoenix and ours runs every time..

 

[Plain2000DII]

55 deg C = 131 deg F, just for clarity.

 

[pdogg]

55 deg C = 131 deg F, just for clarity.

ah.. good point, I missed the "C" part..