E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

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!

Reply
 
Thread Tools Search this Thread Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
Old 12-11-2016, 12:12 PM   #61
Dave1027
Registered User
 
Join Date: Jan 2013
Location: California
Posts: 1,744
My Ride: '06 IR zhp coupe
Quote:
Originally Posted by mattthecoxcomb View Post
Having done O2 Pilot mod today, I noticed the following: while it is possible to connect a vacuum line to the capped CCV port without removing the throttle body on standard CCVs, for the winterized CCV (which is wrapped in foam insulation), I found that getting to the port required removing the throttle body. Certainly not deal breaker for anyone competent enough to do this job, just something to be aware of if anyone is having trouble.

That said, I am having trouble of my own. During the course of this mod I took apart the intake system down to the manifold. I cleaned the throttle body and the idle control valve with carburetor cleaner. I inspected the intake boot segments and they were free of cracks. I did not replace the O-rings for either the throttle body or the DISA as these were replaced in March when I removed the entire manifold to replace the CCV. I got everything back together but when I started my car afterward the dashboard lit up like a Christmas tree with EML, SES, and traction triangle lights (!). The idle also fluctuated wildly from 400 to almost 1,400 RPM. The car is not driveable in this condition.

I connected my code reader which indicated lean codes for both banks as well as throttle position sensor errors. I'm thinking this must be an intake leak somewhere and admittedly I kind of rushed putting the intake boot sections/airbox back together--which makes me think maybe some section of the boot isn't properly connected. Either that or the throttle body and DISA O-rings need replacing again. Are they single-use items like some crush washers? Did anyone else have any such hiccups doing this mod? At this point my plan is to tear down the intake back to the throttle body again and rebuild more carefully, just wondering if anyone had similar problems with this. Also wondering if maybe my cleaning of the idle control valve or throttle body could have damaged either--I used the same procedure as in March and had no problem then. But the throttle position sensor code concerns me. Lean codes--almost definitely a leak in some rubber or plastic part. But the throttle position sensor code--could I have messed up the throttle body?

Also, any possibility the new vacuum line running from the CCV to the unused port on the manifold (the O2 Pilot mod itself) is the cause? I'm just disturbed because the last time I did this I took off the whole manifold, which was a much bigger job (involving disconnecting the fuel rail etc.) and the intake tract went back together without issue. Please help!
I've already posted that the 02Pilot mod is a simple 20 minute task where nothing is removed but the cabin filter housing and the plastic belly shield. You never had to remove the throttle body or any of that.
Dave1027 is offline   Reply With Quote
Old 12-11-2016, 09:54 PM   #62
mattthecoxcomb
Registered User
 
Join Date: May 2009
Location: Washington, DC
Posts: 61
My Ride: 2005 325i
Thanks for the input and feedback everyone.

So I got it working. I think I didn't tighten all the hose clamps fully and that was causing an intake leak and lean codes. I buttoned everything back together and started her up and no longer had lean codes but still had the P0123 and P0222 throttle position sensor codes. I pulled it apart for a third time and brilliantly found that I had forgotten to reconnect the wiring harness to the throttle body. Brilliant.

Lesson learned: don't rush reassembly.

Now that the O2 Pilot Mod is hooked up and hopefully creating more crankcase vacuum, I will report on my oil consumption as appropriate. Thanks again!
mattthecoxcomb is offline   Reply With Quote
Old 12-11-2016, 10:00 PM   #63
BartenderPlease
Registered User
 
Join Date: Sep 2006
Location: FL
Posts: 9,446
My Ride: '03 540i/6 M-Sport
Quote:
Originally Posted by mattthecoxcomb View Post
Thanks for the input and feedback everyone.

So I got it working. I think I didn't tighten all the hose clamps fully and that was causing an intake leak and lean codes. I buttoned everything back together and started her up and no longer had lean codes but still had the P0123 and P0222 throttle position sensor codes. I pulled it apart for a third time and brilliantly found that I had forgotten to reconnect the wiring harness to the throttle body. Brilliant.

Lesson learned: don't rush reassembly.

Now that the O2 Pilot Mod is hooked up and hopefully creating more crankcase vacuum, I will report on my oil consumption as appropriate. Thanks again!
I was going to say. Something was not plugged in. Glad you found it. Pay more attention!!
__________________

.............................................@jb540i6

'02 JR/Naturbraun 330i M-Tech I | M-Tech II Fr. | Supersprint Headers | Remus Sport |
.....| SM Flywheel Conv. | 18" CH'ish reps | Short Shift | Orion V2.5 | RCR LED Tail |

'03 JB/Schwarz 540i M-Sport 337 | Decatted | Short Shift | Carbon Fiber Trim |

BartenderPlease is offline   Reply With Quote
Old 12-11-2016, 10:22 PM   #64
lingon300k
Registered User
 
Join Date: Oct 2015
Location: NJ / USA
Posts: 1,515
My Ride: 2005 325xi Automatic
Quote:
Originally Posted by mattthecoxcomb View Post
Thanks for the input and feedback everyone.

So I got it working. I think I didn't tighten all the hose clamps fully and that was causing an intake leak and lean codes. I buttoned everything back together and started her up and no longer had lean codes but still had the P0123 and P0222 throttle position sensor codes. I pulled it apart for a third time and brilliantly found that I had forgotten to reconnect the wiring harness to the throttle body. Brilliant.

Lesson learned: don't rush reassembly.

Now that the O2 Pilot Mod is hooked up and hopefully creating more crankcase vacuum, I will report on my oil consumption as appropriate. Thanks again!
Glad you got it sorted. Hopefully your oil consumption goes down, too.
lingon300k is offline   Reply With Quote
Reply

Tags
02pilot mod, ccv, oil burning, oil catch can, oil consumption

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 01:43 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use