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: 6 votes, 3.67 average. Display Modes
Old 04-24-2017, 08:10 AM   #41
Bulletec
Registered User
 
Join Date: Apr 2017
Location: South Africa East London
Posts: 1
My Ride: E46 318i Facelift
E46 performance problem, rough idle, high fuel consumption, sudden increase in speed,

Hi all, I hope I'm at the right place, I've taken my E46 318i Facelift N46B20 to bmw specialists to have codes read and came back with O2 sensor faults but they said it cant be the O2 sensors causing the problem. Car idles rough, stales sometimes, hesitation on pull off, sudden increase in speed while cruising. High fuel consumption, when I accelerate the engine bogs down then I have to release and press the accelerator pedal again to get it going. Sometimes the car runs perfect, and sometimes it just runs like its got flu, idling jumping all over the place, stalling and just won't accelerate, have to keep pressing accelerator, like when you test the brakes by pumping the pedal, I have to basically pump the accelerator pedal to get movihad Delayed acceleration. I've fitted new NGK laser platinum spark plugs, new fuel filter, new air filter, new oil filter and castrol edge 5w40 oil, new eccentric shaft sensor, new tapped cover gasket, I've had all radiator hoses replaced and vacuum hoses, reconditioned vacuum pump, secondary air pump is bypassed. I've had a diagnostics test done with gt1 and impa. Like a said only o2 fault codes. They recon its the cvv that's maybe blocked or one of the hoses leaking, I'm at my wits end with this problem, I've searched everywhere and tried everything, oh I've even fitted viton orings on vanos solenoids and cleaned them, and tested pencil coils all four are 0.78 ohms. Any help and or comments will be greatly appreciated. Thanks in advance.
Bulletec is offline   Reply With Quote
Old 05-07-2017, 06:05 PM   #42
DEADF15H
Registered User
 
Join Date: Jul 2012
Location: Boca Raton, FL or Salisbury, NC
Posts: 1,464
My Ride: 2001 325i Auto
I think you may want to start your own thread due to your model. Put "381i Facelift rough Idle, hesitation". You need to get an OBD11 Veepak scanner and OBD Fusion app, so you can report your own codes, search poster jfoj for a great guide. Right now we don't know if your pre-cat sensors are causing the problem or the post cat sensors, but my guess is it would have to be precat. CCV system that's at least 12 years old, if original, causes all kinds of issues, but we need your codes.
DEADF15H is offline   Reply With Quote
Reply

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 07:25 PM.


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