 » Site Navigation | | | | » Recent Threads | | | |  |  |  | |  09-18-2006, 12:55 PM | #1 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |  secondary air control
Anyone know what this means, i did a search and couldnt really find any good info. It throws this code I reset it then it pops back on after 2 or 3 days. |  |  | | 09-18-2006, 05:06 PM | #2 | | Senior Member Join Date: Mar 2004 Location: Virginia Posts: 368 |
Probably the secondary air pump, the valve that controls the pump's input to the exhaust manifold, the vacuum solenoid switch, or all three. My failure scenario was the valve stuck open letting moisture enter the pump and the pump failed. Got it all fixed and now the CEL is showing a cam sensor fault. I hate OBD-II. | | | | | 09-18-2006, 05:10 PM | #3 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
Quote: Originally Posted by Phil Marx  Probably the secondary air pump, the valve that controls the pump's input to the exhaust manifold, the vacuum solenoid switch, or all three. My failure scenario was the valve stuck open letting moisture enter the pump and the pump failed. Got it all fixed and now the CEL is showing a cam sensor fault. I hate OBD-II. | What would be the correct steps to take to figure this out? | | | | | 09-18-2006, 05:24 PM | #4 | | doesn't care about you. Join Date: Aug 2004 Location: Denver, CO Posts: 3,925 |
Quote: Originally Posted by chriswashburn18 What would be the correct steps to take to figure this out? | Remove it. It only helps with cold start up emissions. __________________ 
'99 Dinan M3 | | | | | 09-18-2006, 05:33 PM | #5 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
what exactly should i remove and will the light always stay on then | | | | | 09-18-2006, 07:19 PM | #6 | | Senior Member Join Date: Dec 2004 Location: SoCal Posts: 549 |
you remove it...
and your check engine light will be on forever...
and youll never pass smog.
dunno if they make a simulator. __________________
318Ti Sport (Gone, but thanks for your years of service) | M3 E30 | 190E-16V | M Coupe E36/8 | | | | | 09-18-2006, 07:31 PM | #7 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
Quote: Originally Posted by AutoM3otives you remove it...
and your check engine light will be on forever...
and youll never pass smog.
dunno if they make a simulator. | I am not sure what to do, my car is for sale and I need to fix it but I am not spending thousands on BMW service | | | | | 09-18-2006, 09:20 PM | #8 | | Member Join Date: Jul 2005 Location: Calgary, Alberta Posts: 89 | Spend Money Light.
I went through that last winter. I was getting a bunch of codes on the CEL. Had the cam position sensor replaced, and the secondary air pump. It was a little pricey, but the CEL has been off since. I have renamed the light the Spend Money Light, as there is usally no noticable difference in the performance of the car, you just have to spend money to make the light go out. | | | | | 09-18-2006, 09:48 PM | #9 | | Senior Member Join Date: Apr 2006 Location: Southern California Posts: 456 |
Quote: Originally Posted by Calgary98TI I went through that last winter. I was getting a bunch of codes on the CEL. Had the cam position sensor replaced, and the secondary air pump. It was a little pricey, but the CEL has been off since. I have renamed the light the Spend Money Light, as there is usally no noticable difference in the performance of the car, you just have to spend money to make the light go out. | +1 __________________ SPEED IS NOT AN EQUATION CONSISTING OF DISTANCE DIVIDED BY TIME. IT IS A LIFESTYLE! | | | | | 09-20-2006, 12:43 PM | #10 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
Quote: Originally Posted by Calgary98TI I went through that last winter. I was getting a bunch of codes on the CEL. Had the cam position sensor replaced, and the secondary air pump. It was a little pricey, but the CEL has been off since. I have renamed the light the Spend Money Light, as there is usally no noticable difference in the performance of the car, you just have to spend money to make the light go out. | I may have to do this because I have two potential buyers and 1 is coming monday. | | | | | 09-20-2006, 12:56 PM | #11 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
i ran the test last night and now 2 other codes are coming up. I dont have my book but here is about what they said.
MIssfire unkown cylinder
Missfire on #3 cylinder
and the Secondary Air Control | | | | | 09-20-2006, 01:10 PM | #12 | | doesn't care about you. Join Date: Aug 2004 Location: Denver, CO Posts: 3,925 |
The misfires are usually from some sort of vacuum leak. There is a vacuum operated seloniod attached to the Secondary air pump, check that line. It sounds like that could be the problem. Quote: Originally Posted by chriswashburn18 i ran the test last night and now 2 other codes are coming up. I dont have my book but here is about what they said.
MIssfire unkown cylinder
Missfire on #3 cylinder
and the Secondary Air Control | __________________
'99 Dinan M3 | | | | | 09-20-2006, 01:46 PM | #13 | | Member Join Date: Feb 2005 Location: Oak Harbor, Wa Posts: 69 |
Quote: Originally Posted by DustenT The misfires are usually from some sort of vacuum leak. There is a vacuum operated seloniod attached to the Secondary air pump, check that line. It sounds like that could be the problem. | i will do that tonight, thank you for trying to help | | | | | 09-20-2006, 02:56 PM | #14 | | Senior Member Join Date: May 2005 Location: Indianapolis, IN Posts: 228 |
I have the Secondary Air Control fault code (have had it for about a year now). Our car used to make this whirring noise when we started the engine. It lasted for about 40 seconds or so. In retrospect now I know that it was the secondary air pump (or just Air Pump) doing its job. One day the noise sounded extra loud...that was (again in retrospect) the air pump going bad. Now there's no sound at all and we have the fault code. The pump appears in this diagram (part 01)...applies to my '98 ti A new air pump might cost as little as $200 street around here from a local BMW parts dealer (indianapolis). Pelicanparts lists it for $278. If these were in fact your symptoms then your pump probably failed like ours did. All said if you pay someone to do it, you may pay for 1-2 hours of labor? I'm sure it wouldn't be thousands, but I'm NOT sure it would fix your problem because I'm a noob. | | | | | 09-20-2006, 03:02 PM | #15 | | doesn't care about you. Join Date: Aug 2004 Location: Denver, CO Posts: 3,925 |
I have a secondary air pump sitting in my garage. If someone is interested in it let me know, I'd happy to sell it. __________________
'99 Dinan M3 | | | | | |
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