E46 Secondary Air System

The growling is probably something else maybe a catalytic converter. The growling is probably something else maybe a catalytic converter. Just cleaning the ports wont fix the situation. How to Delete the Secondary Air-Pump on any BMW E46 - YouTube. For a short period after a cold start the catalytic converter is not hot enough to efficiently combine unburned fuel with available oxygen. Bmw E46 Electric Seat Wiring Diagram. The secondary air system is used to improve catalytic converter efficiency and reduce the emission of harmful combustion byproducts in the automotive exhaust.

This carbon blocks the small ports behind the exhaust valves for the secondary air.

Repeat this about 3 times and then let sit 20 min. Reduce weight clean up your engine bay and to simplify troubleshooting by removing a system. Emission System Repair BMW E46 secondary air check valve. One end is connecte. In cold starts it just blows air into the exhaust for a short time. Jump to Latest Follow Hey everyone.

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E46 secondary air system. Secondary-air valve secondary-air pump solenoid switching valve. Quick run down on how to replace your E46 BMW Secondary Air Systems Air Pump Check ValveReplacement Step1. The electric circuit of.

I doubt that it would make any sound if youre driving. Bmw E46 Electric Seat Wiring Diagram. Yes the removal of the secondary air pump is possible.

Emission System Repair BMW E46 secondary air check valve. You can hear it easily it sounds like a vacuum cleaner. Secondary-air valve and secondary-air pump in BMW E46 highlighted With spark-ignition engines the greatest pollution occurs on cold starting.

You would get codes if it is failingfailed. The growling is probably something else maybe a catalytic converter. Secondary-air systems have been successfully employed to.

An independent mechanic replaced the secondary air pump air valve electric control valve and rubber hose at a total cost of 1050. Enter your ride HERE to be a part of Octobers Ride of the Month Challenge. Discussion Starter 1 Jan 30 2011.

Then start the engine for about 4 seconds so the Seafoam is blown in the exhaust valve. Repeat this about 3 times and then let sit 20 min. 1 - 18 of 18 Posts.

Another necessity is the reprogramming of the ECU which accounts for the removal of the SAP system in order to not throw any fault codes. Just cleaning the ports wont fix the situation.

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The secondary air injection consists of an air pump that black plastic cylinder-shaped thing next to the exhaust side of the engine and a valve.

Secondary Air Injection System on BMW E46 330XI Code P0491P0492 - YouTube. My secondary air low flow code cleared by filling the tube between the pump and the exhaust valve with seafoam. Wiring diagrams include location information wiring pin identification troubleshooting maintenance function descriptions and more. Disconnect the Air pump hose. Joined Dec 20 2008 35 Posts. 1 - 18 of 18 Posts. In cold starts it just blows air into the exhaust for a short time. You would get codes if it is failingfailed. Reduce weight clean up your engine bay and to simplify troubleshooting by removing a system.

How to Delete the Secondary Air-Pump on any BMW E46 - YouTube. I couldnt find any instructions online on how to delete the secondary air pump in my BMW E46 so today Im bringing the information. Start the car and an amazing amount of carbon will burn off the valves. Jump to Latest Follow Hey everyone. I doubt that it would make any sound if youre driving. Secondary-air valve secondary-air pump solenoid switching valve. Last November the Check Engine light appeared on a 2001 325Ci and the diagnostic code reader displayed P0491 and P0492.