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 > Other BMW Models > General BMW Model Discussion

General BMW Model Discussion
All non E46 BMW model questions in here. Look below for E36, E90 and F30 specific forum. For additional model specific forums check out bimmerfest.com!

Thread Tools Search this Thread Rate Thread Display Modes
Old 05-06-2015, 08:28 AM   #1
Registered User
Join Date: Feb 2012
Location: Toronto
Posts: 44
My Ride: bmw 323i e46
3 codes p1479, p1510 & p1477

Hey Guys
I have a e46 323i 99
I got 2 codes the first day
What happened was I went for a car wash and gas'd up and went for a car wash.
I did a basic wash because I didnt want the under body rinse since I have no belly plate.
After a few hours got the codes and car went into limp mode...

First two codes where:
P1510: Idle - speed control stuck

P1478 code is indicating a small leak in the fuel evaporative system.

I took action of taking apart, accessing and cleaning the Idle Control Valve
with some Qtips and air compressor.
I checked and may need a new gas cap, but not sure I will probably get one either way for $10

I cleared the codes and the car worked okay that night, no more limp mode or anything.

The next day I got a totally different code after starting the car and getting no less than a block.

It was:

P1477 Leakage diagnostic pump need switch did not open

Im not sure what that means but I looked it up and enginecodes.com said:

Possible causes
- Faulty Leakage Diagnostic Pump Reed Switch
- Leakage Diagnostic Pump Reed Switch harness is open or shorted
- Leakage Diagnostic Pump Reed Switch circuit poor electrical connection

My question to the forum is: Did this happen due to the car wash and maybe the gas cap being loose? or Is there something wrong with a part that needs replacing or sensor?

Has anyone experienced this before?

After Clearing these 3 codes the car worked fine the rest of the day and nothing has happened since!

Thanks in advance !
lewsidius is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 05-08-2015, 05:29 AM   #2
Registered User
Join Date: Feb 2012
Location: Toronto
Posts: 44
My Ride: bmw 323i e46

Two days later the same code appears
P1477 Leakage diagnostic pump need switch did not open
Does anyone know what this is?
Reed switch? Does it need cleaning or replacing?
lewsidius is offline   Reply With Quote

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 01:05 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use