When does the secondary air injection monitor run?

When does the secondary air injection monitor run?

It should be noted that the secondary air injection monitor which checks for the performance of the air pump runs mainly when the engine is cold. Once the engine warms up the monitor is done checking the pump. With that said, it’s not the number of miles you drive that sets off the air injection monitor, rather the number of cold starts.

Why is my secondary air system monitor not ready?

Determined I needed to replace my air pump, did that, and car is still failing due to the secondary air system monitor not being ready. I have no codes still and am super frustrated and unsure what to do.

Why is my air injection monitor not working?

So the truck sat unused for a long time and the battery went dead, beyond recovery. Installed new battery and took to get smogged in N. California on December 22nd 2015 – truck would not pass because “OBDII MONITORS NOT READY”. The tech gave me a print out of the required drive cycles and I left and then performed them several times.

Why are my secondary air injection valves not running?

There are no signs of wear and all vacuum line were inspected for leaks. Secondary air check valves- Both valves were inspected and replaced due to carbon buildup. Neither were clogged but I still replaced.

It should be noted that the secondary air injection monitor which checks for the performance of the air pump runs mainly when the engine is cold. Once the engine warms up the monitor is done checking the pump. With that said, it’s not the number of miles you drive that sets off the air injection monitor, rather the number of cold starts.

Determined I needed to replace my air pump, did that, and car is still failing due to the secondary air system monitor not being ready. I have no codes still and am super frustrated and unsure what to do.

So the truck sat unused for a long time and the battery went dead, beyond recovery. Installed new battery and took to get smogged in N. California on December 22nd 2015 – truck would not pass because “OBDII MONITORS NOT READY”. The tech gave me a print out of the required drive cycles and I left and then performed them several times.

What are the symptoms of a bad air injection pump?

One of the early symptoms of a bad secondary air injection pump is the Check Engine warning light turning on. The engine control unit can automatically detect when the secondary air injection pump has a problem.