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Old 02-23-2010, 02:46 PM   #1
FastKA24DET
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P0414 Help

I have engine code

P0414 Secondary Air Injection System Switching Valve A Circuit Shorted

What can cause that.
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Old 02-24-2010, 12:45 AM   #2
FastKA24DET
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i tried different egr valve and the code is still coming back, i tested the pump to a battery and it was working i heard it sucking the air.
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Old 02-24-2010, 12:44 PM   #3
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anyone
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Old 02-24-2010, 02:24 PM   #4
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http://forum.e46fanatics.com/showthr...ighlight=p0414

P0414 Secondary Air Injection System Switching Valve A Circuit Shorted
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E30 in progress.





Last edited by bimminge46; 02-24-2010 at 02:26 PM.
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Old 02-24-2010, 04:11 PM   #5
FastKA24DET
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Quote:
Originally Posted by bimminge46 View Post
http://forum.e46fanatics.com/showthr...ighlight=p0414

p0414 secondary air injection system switching valve a circuit shorted
wow
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Old 02-24-2010, 09:23 PM   #6
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Old 02-24-2010, 09:49 PM   #7
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Quote:
Originally Posted by FastKA24DET View Post
I have engine code

P0414 Secondary Air Injection System Switching Valve A Circuit Shorted

What can cause that.
FAST, I have a post that has to do with 2 other secondary air system codes, BUT there might be some useful info for you there:

http://www.bimmerfest.com/forums/sho...ht=p0491+p0492

There is an attached document in my post on how to troubleshoot the entire secondary air control system. "Switching valve" could also mean part # 5 "solenoid vacuum control switch" on the diagram (I'm not positive but that's an idea for you), also check fuses and relays first. If it's #5 then it sucks since it's located god knows where under the manifold.

Hope it helps somewhat.

Edit: Just searched and found this short link http://www.fixya.com/cars/t1870961-p0414that agrees with my theory :-)

Last edited by Starless; 02-24-2010 at 10:14 PM.
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Old 02-24-2010, 10:15 PM   #8
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Thank you.
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Old 02-26-2010, 03:41 AM   #9
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i did some test and my plug does not have 12 volts or any at all. the 50 amp fuse is good any other fuses connected to this wire or is there any other fuse box.
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Old 02-27-2010, 05:24 PM   #10
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Now what els can i change.
I replaced air pump relay and i still have same code and no power to pump 50 amp fuse is good.
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Old 02-28-2010, 03:30 AM   #11
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Old 02-28-2010, 03:48 PM   #12
FastKA24DET
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What els can i check. I checked even fuses near ecu that is in a small box of 5 all good.



can # 5 cause the ecu not sending any power to pump

Last edited by FastKA24DET; 02-28-2010 at 04:07 PM.
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Old 12-29-2012, 10:17 AM   #13
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Hi, Did you ever solve this code? I too am getting this code and trying to figure out what needs to be changed. I spoke to a tech at FCP Euro and he said he thought the Emission System Air Pump needs to be changed, but based on the code, I feel like it is possible it is #5 in the diagram, ELECTR.VALVE 1 03/2003 11747810831


Let me know..thanks
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Old 05-06-2013, 01:02 PM   #14
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I'm working on this code too, anyone have it solved? However, I don't think the air pump is #5, in fact I don't see the air pump, but it connects to the big port on #1. Part 5 is the switch that allows vac to flow and open the valve #1. I don't hear my air pump turn on, so I took it off and jumpered 12V to it and it worked, so that isn't it... Why is the most expensive part the easiest to change @#$%^&*(!
I'm suspecting the realy now since I checked the fuse and it is good. Anyone know where that special salmon colored relay is on an 01 325i?

Last edited by Rotten Robbie; 05-06-2013 at 01:03 PM.
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Old 05-09-2013, 11:55 AM   #15
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Secondary Air Pump does not come on and causes code P0414;
I know my air pump is ok because I took it off and jumpered 12V to it and it ran fine. My 50A fuse #36 in the glove box is good. I took the glove box out and the cover behind it and replaced the salmon colored rely, but my pump still won't turn on. damit! $19 mistake...
Anyone?
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Old 05-09-2013, 12:36 PM   #16
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Quote:
Originally Posted by Rotten Robbie View Post
I'm working on this code too, anyone have it solved? However, I don't think the air pump is #5, in fact I don't see the air pump, but it connects to the big port on #1. Part 5 is the switch that allows vac to flow and open the valve #1. I don't hear my air pump turn on, so I took it off and jumpered 12V to it and it worked, so that isn't it... Why is the most expensive part the easiest to change @#$%^&*(!
I'm suspecting the realy now since I checked the fuse and it is good. Anyone know where that special salmon colored relay is on an 01 325i?
The Secondary Air Pump is not in that diagram. Item 5 is the control valve.
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Old 05-09-2013, 12:40 PM   #17
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The salmon relay is behind the glove box. Technically, it is in front of the glove box.

Remove the glove box, the relay will be visible. As I remember, there will be a bank of relays all lined up, the salmon relay is on the left end of the bank. The color of the relay denotes the power rating, I believe. (Lower power relays are light blue, the salmon relay handles a load of 50-ish amps.)
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Old 05-09-2013, 03:50 PM   #18
Rotten Robbie
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I know my air pump is ok because I took it off and jumpered 12V to it and it ran fine. My 50A fuse #36 in the glove box is good. I took the glove box out and the cover behind it, -sorry I mean in front of it , and replaced the salmon colored relay, but my pump still won't turn on. damit! $19 mistake..
Anyone?

Last edited by Rotten Robbie; 05-09-2013 at 03:51 PM.
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Old 05-09-2013, 05:05 PM   #19
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The SAP only runs on a cold engine start. If the engine is not cold, the pump will not run. Basically, the engine runs first thing in the morning or right after you get off work, but it never runs at any other time.
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Old 05-10-2013, 02:07 PM   #20
Rotten Robbie
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Yes, it never turns on when the engine is cold. I have checked or replaced everything up to the relay. I wonder what input tells the relay to close???
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