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  #21  
Old 09-27-2016, 08:23 AM
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docnabimmer is on a distinguished road
sorry it did not work for you R.

Sorry to hear that ,I cant think of anything else as I had stopped when I changed the O2 sensors. Mind you I was chasing this starting 10/15 started with cleaning IACV,DISA, MAF and inspecting the intake boots,whatever was in the area,didnt touch the fuel injectors but treated 2 full tanks of gas with cleaners,didnt work,still getting intermittent P1093 code,lived with it and reset as needed, only thing i changed was the fuel filter since it was original at 120k,up until 3/16 when it was warmer when I was able to check the O2 sensors....hope somebody on here with more expertise can help you out, try our brothers at e46fanatics, see if they can help you out...X5 3.0 now has 125K miles, nothing new added since the last oxygen sensor was changed,no P1093.

Last edited by docnabimmer; 09-27-2016 at 08:32 AM. Reason: added info
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  #22  
Old 05-17-2018, 04:31 PM
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Corbster is on a distinguished road
Any solution for P1093 ?
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  #23  
Old 05-18-2018, 02:19 PM
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UPDATE NO P1093

Dear Sir,
to this day i am happy to report that i have not had any SES problems since i changed the 2 lower and 2 upstream o2 sensors.
2005 BMW X5 3.0 other than the O2 pilot mod car is bone stock, auto 135800 miles.
cheers
Rudy T
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  #24  
Old 09-05-2020, 01:18 PM
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Previously, cleaning the idle control valve resolved this issue for us in 2016. Well, 42,XXX miles later and the P1093 code is back on.

M54 ICV cleaning video: https://youtu.be/lVPV-XnmJyk

Just replaced both pre-cat sensors again, no luck there.
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  #25  
Old 09-12-2020, 01:44 PM
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Cleaned my MAF with MAF specific cleaner, put a big bottle of Lucas complete fuel injection system cleaner in the tank. Drove 130 miles this week, the light came right back on.

At 132 miles, the service engine soon light turned off on its own! The code was gone for about a day, several drive cycles. Then it returned. I thought this was quite unusual. Anyone have some insight?
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  #26  
Old 12-09-2020, 07:25 PM
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Update on this issue: I used a $75 smoke tester kit (found on eBay and Amazon) to smoke the intake on our X5. Through a glove on the air intake, in front of the MAF. Removed the MAF to avoid any potential damage from the smoke fluid vapor.

Here's a video of the smoke test kit/process I used on my E32: https://youtu.be/QIGQGai5ngs

After about 10 minutes of smoke building up, it began to pour from a vacuum hose attached to the lower intake boot. For some reason the vacuum line was barely on the fitting, and smoke began to billow out. Definitely a leaking spot. Pushed the hose back on, and done. Erased the code, will report back when or if the codes return.

If the code does return, I've purchased a new Bosch Idle Control Valve for around $175 at FCP Euro to install. Several people have reported a faulty ICV causing this code and issue.
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  #27  
Old 12-10-2020, 09:22 PM
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The SES light came back on within 37 miles of erasing the code and fixing the leaking vacuum line. New idle control valve will go in this weekend... sigh...
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  #28  
Old 12-12-2020, 01:18 PM
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Quote:
Originally Posted by richardb View Post
The SES light came back on within 37 miles of erasing the code and fixing the leaking vacuum line. New idle control valve will go in this weekend... sigh...
That's dissapointing.

I was excited for you when the smoke tester "worked" so I built myself a little tester and was hoping that would point me in the right direction chasing down my misfire.

Hopefully the ICV is the answer for you (fingers crossed)
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  #29  
Old 12-14-2020, 09:29 PM
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Hey everyone, bad news. Installed new ICV Sunday and erased the code.

24 miles after the installation of the new idle control valve the service engine soon light returned.

Not sure what is next.
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  #30  
Old 12-14-2020, 11:03 PM
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Is it still the same code? What are some of your data when the light comes on? STFT, LTFT, MAF air flow g/s?
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