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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 02-17-2013, 02:10 PM   #61
Dippinwandy
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Originally Posted by UDM-E46 Enthusiast View Post
A bad crankshaft sensor "can" cause bad idling and acceleration behavior. You can give that a shot.
But wouldn't that give out a code?
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Old 02-17-2013, 02:25 PM   #62
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One thing that can really affect your vehicle can be the EGR valve. Please look into that part!
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Old 02-17-2013, 02:44 PM   #63
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But wouldn't that give out a code?
Just a thought.
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Old 02-17-2013, 02:54 PM   #64
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Sorry to hear about your problems. I hope you can figure it out.
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Old 02-17-2013, 03:17 PM   #65
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But wouldn't that give out a code?
Already replaced last month ,,
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Old 02-17-2013, 03:32 PM   #66
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Already replaced last month ,,
And the EGR ?
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Old 02-17-2013, 04:53 PM   #67
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And the EGR ?
What is the EGR valve?
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Old 02-17-2013, 04:56 PM   #68
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The title states it. I have cleaned my throttle body, ICV, replaced intake boots and cleaned, changed spark plugs. The dealership said the reason this was last time was because I had a bad valve cover. So I spent $500 on that replacement and it was great for months. Now it's doing it again.

I am drumming a huge youth retreat 2 hours away and had to pull over "12" times because the car wouldn't let me go over 45 mph! So I turn the car off and on again. The cel stays on but the eml and traction lights are off. Every stop sign I approach, the lights comes back!

I know there are multiple threads on this. But I am wondering if maybe y throttle body is done for or my icv.

Here are the codes.
P1510 -ICV STUVK

is ur car, stalling and the engine shuts off? and then the battery light and oil light pop on
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Old 02-17-2013, 06:42 PM   #69
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is ur car, stalling and the engine shuts off? and then the battery light and oil light pop on
No batterry and oil light
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Old 02-17-2013, 07:26 PM   #70
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And the EGR ?
I'll look into that!! Looks like it'll take a little time to remove.
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Old 02-18-2013, 05:15 PM   #71
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Another question, some people may say that the throttle body would be in bad shape, but if I have not received any codes on my tool then I should be fine, correct? That is what I was thinking. The only code that I have got really is for the idle control valve.
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Old 02-19-2013, 10:44 AM   #72
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Anyone?
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Old 02-19-2013, 03:57 PM   #73
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Try this link: http://www.bmwtech.ru/pdf/e46/ST034/...Internet-1.pdf

I think everyone lost interest when you made the statement about the EGR valve. (If you find it, post a pic. To my knowledge (and per the link) EGR is accomplished internally via the VANOS.)

Good luck!
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Old 02-19-2013, 04:44 PM   #74
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I'm still having the same problem
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Old 02-19-2013, 07:05 PM   #75
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I'm still having the same problem
Gah, i hope this ICV swap will FIX IT ALL.
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Old 02-19-2013, 07:46 PM   #76
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Gah, i hope this ICV swap will FIX IT ALL.
before buying a new icv, you should remove and clean your old one. It may help your problem.
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Old 02-19-2013, 07:52 PM   #77
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before buying a new icv, you should remove and clean your old one. It may help your problem.
As stated in the very first post, I have done that four times are ready.
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Old 02-19-2013, 08:13 PM   #78
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As stated in the very first post, I have done that four times are ready.
I think that if your ICV is getting stuck open, it would be from something clogging it. I also read the first post but interpreted it as being cleaned "months ago." You never know. After reading page 2, dumb comment.

Your o2 sensors also can get deposits from a stuck icv which may be contributing to your problems. I would bet on ICV or the throttle position sensor.
Best of luck
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Last edited by college46; 02-19-2013 at 08:14 PM.
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Old 02-19-2013, 09:32 PM   #79
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I think that if your ICV is getting stuck open, it would be from something clogging it. I also read the first post but interpreted it as being cleaned "months ago." You never know. After reading page 2, dumb comment.

Your o2 sensors also can get deposits from a stuck icv which may be contributing to your problems. I would bet on ICV or the throttle position sensor.
Best of luck
But shouldn't I follow what my codes are reading? Especially if every code I am getting after my check engine light comes on, is my idle control valve sticking.
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Old 02-20-2013, 01:44 PM   #80
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Maybe I get lucky... I had the EXACT same problem, I replaced my mass airflow sensor and my fuel filter. I only replaced them because I had the parts sitting around and figured I'd give it a shot. After I replaced them the problems immediately stopped. Again, maybe I just got lucky but for what it's worth it seemed to solve my problem...
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