NEED HELP!!! 2000 e46 is revving out at 2rpm. - E46Fanatics 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 > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Thread Tools Search this Thread Rate Thread Display Modes
Old 07-22-2011, 11:07 AM   #1
Registered User
Join Date: Jul 2011
Location: Oklahoma
Posts: 2
My Ride: 2000 E46 323ci
Send a message via Yahoo to bmausti87
Exclamation NEED HELP!!! 2000 e46 is revving out at 2rpm.

e46 is revving out at 2 rpm and i have checked everthing that i can think.

Check list: TPS sensors, MAF, O2 sensors, coils, vaccume lines, battery, and no luck.

Here is some more information about the car.

It was a 2000 323ci with auto in it, but I have swapped out the engine and replaced the auto with a 5-speed. Both from the same 2002 325i. I am still using the original harness from the 323ci. The drive by wire would not work with the original harness so the intake was replaced with the 323ci intake on the 325i engine.

The car iddles perfect but when I go to take it for a test drive around the block it is acting like its hitting the rev limiter at 2rpm.

Thinking it is in limp mode but not totally sure.

This is my 1st BMW and jumped into it head first and have done all the work myself. The rev problem is my last issue with this swap and can not figure it out.

Any ideas on this problem???

Last edited by bmausti87; 07-23-2011 at 10:49 AM. Reason: to see if changing the title will help with a response
bmausti87 is offline   Reply With Quote
Ads by Google

Guests, get your FREE membership to remove this ad.
Old 07-25-2011, 04:24 PM   #2
Registered User
Join Date: Jul 2009
Location: Brentwood, CA
Posts: 63
My Ride: 99 328 5spd
Check if the throttle cable is adjusted correctly (since you just swapped motor/trans) HTH
e46crooser is offline   Reply With Quote
Old 07-27-2011, 08:45 AM   #3
Registered User
Join Date: Jul 2011
Location: Oklahoma
Posts: 2
My Ride: 2000 E46 323ci
Send a message via Yahoo to bmausti87
The cable is adjusted correctly. I know it is in limp mode now for sure. Since I am not using a standard transmission harness or computer the car does not know that their is a trans behind it.

Kind of like choping my waist off and not knowing it then I get up and try to walk, well thats not going to happen. This is why I think for sure its in limp mode because my car has no idea whats going on, no information telling that it has a trans so the computer says no I am not going to rev past a certain RPM because something is wrong.

Found a guy that will re-wire my car for $300.00. The dash lights will light up for sure but he said that I will be able to drive the H#LL out of it when he is done.

I will reply back if/when the re-wireing is complete.
bmausti87 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 11:43 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - VerticalScope Inc. All rights reserved.