Question about BMW 323

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My bmw 323i ecu is bad can i replace it with a used one

Car run great then barley gets down the road my mechanic pulled code said it was the throttle body or the ECU it looks like the throttle body has been replaced?

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No that is not a good idea, buy a rebuilt one from the dealer, it has all the latest updates.

Posted on Oct 29, 2012


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Posted on Jan 02, 2017

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SOURCE: 1988 Chevy S10 2.5

chack and see if your security light is staying on if so then security is shutting down fire to injectors.
are you gettting spark? pcm needs to see a signal from cam sensor to fire injectors. also when you first cut key on you should see the injectors give an initial shot of fuel

Posted on Sep 29, 2008

  • 100 Answers


I had this issue with a 95 once, (cant read the code but light stays on) I reset the code and about a week later the code came back on and I was able to read it.

Posted on Mar 11, 2009

  • 140 Answers

SOURCE: 1988 nissan pickup engine rotates but does'nt start.

it sounds like the injectors are not opening up man.. replace the injectores and this should fix your problem..good luck keith....

Posted on Mar 21, 2009

  • 39 Answers

SOURCE: My bmw 323i backfired after cleaning the throttle

sounds like you an idle arecontrol valve to me, wich by the way is the only thing that really needs cleaned, make sure the air boot is not torn on the smaller part going to that vlv it tears at the bend you will need a mirror to see if in the car still, also check the plug on the same vlv make sure it is plugged in all the way, also also check the connector on the throttle itself the white arrows must be aligned and touching let me know what you find

Posted on Mar 31, 2009

  • 220 Answers

SOURCE: Car starts then immediately idles down and shuts off

i have had the same problem at times. my car would start and then shut off. but i found that i needed oil and check my oil and it was a quater low put in some oil and everything went fine i notices that everytime the oil is low the same thing happens also depending on the position of the car being park meaning that if you are in a down hill position or up hill position i will do the same. so you have to accelarate for 1 minute to have the oil go up. i hope this works

Posted on Jun 18, 2009

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1 Answer

00 bmw 323i chekc engine light is on and it's giving me codes for all 4 O2 sensors i replaced them and light comes on with the same codes when you turn off the car and turn it back on. possible fu

You need to inspect the spark plugs to see i the engine is running lean or rich. I have seen cars set codes or the O2 sensors instead o setting rich/ lean codes.

Dec 12, 2012 | 1999 BMW 323 Series

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Had the throttle body unit replaced on my BMW 323i and now the car does not run at all

when check engine light comes on there is a trouble code that needs to be addressed

Sep 30, 2012 | 2000 BMW 3 Series

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119--Throttle valve mechanical fault bmw 323i

Hi there:
Fault Code 119 (77) - MDK throttle mechanical sticking.

The accross DTC P1580 code converts to 3 possible BMW codes, 109, 114 & 119. These all relate to the throttle assembly, which on your car is an MDK, motor driven throttle.

The first thing I would do is make sure that the cable is reinstalled correctly and secure in its bracket. I have seen one or two of these that have broken where the cable attaches to the throttle itself. If all of that looks ok I think you probably have a bad throttle.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Sep 18, 2012 | 1999 BMW 323 Series

1 Answer

1986 bmw 535i runs great until tou go down the road about a block or two then acts as if its not getting gas .it runs and idles but wont take any throttle.fuel pressure is good and there is a new pump and...

It sounds like either the throttle position sensor or the mass airflow sensor are bad-the TPS can be checked with a digital meter, it should give different voltage readings as the throttle is opened with the engine off, key on. The MAF can be cleaned with MAF cleaner, or will need to be replaced. Another, although less likely possibility is a clogged fuel filter.

Jul 19, 2011 | 1986 BMW 5 Series

1 Answer

Hello I own a 1998 323i se bmw. Air intake hose that leads to throttle body was cracked but replaced hoping to fix fact that car stalls after idling for about 45 sec. this has not fixed the problem but...

Your problem is still consistent with an air leak. If the mass airflow valve or the idle air control valve had failed, it should set an error code in the computer.
I would look again at all the air tubing, including the elbow over the throttle valve and the tubing to the idle air control. While you are at it, get some mass airflow valve cleaner and clean the MAF, the throttle valve, and the idle air control valve.

Mar 09, 2011 | 1999 BMW 323 Series

2 Answers

Bmw 323i power loss intermitent fault

Have the computer scanned Auto Zone may do this for free to see if you have any stored sensor malfunction codes in the system if so this is the way to ease your search finding the culprit, what you explaining sounds like an engine that is "surging" which could be an IAC(Idle Aior Control) motor...code should be stored to verify this...what happens is the inside of this part, that is located in the fuel injector body, has a pintle(pin) that moves forward abnd backward it is controlled by the computerelectronically, the signal it gets, allows the pin to lean out the mixture by having the pintle move backwards off its "seat" thus allowing more air to flow with the fuel mixture then fuel which is determined by throttle position(idle versus WOT..Wide Open Throttle), or to richen the fuel mixture which signals the IAC to move its pin more toward the tiny seat and close off or limit the amount of air into the fuel mixture...if the pin gets carboned up and freezes in one position the engines performance is greatly hindered and thus can cause the syurge/hunting/stalling/stumbling that you describe, over the years I have tried to clean these pins with cleaners etc. but to no avail. it has a 90% failure rate so I just suk it up and replace them, using fuel injector additive helps keep them clean(Chevron) black plastic container.
Hope this helps!!
Happy Motoring!!

Jul 19, 2010 | 2000 BMW 3 Series

1 Answer

1996 bmw 323i m52b25 slight knocking noise from engine between

take rubber hose and place near ear use as stethoscope, pin point noise, and pull apart, till problem is located. buy manual

Sep 12, 2009 | 1994 BMW 3 Series

1 Answer

323i a/c blows warm air when standing still.

check to see if cooling fans running to cool the condensor .

May 03, 2009 | 1999 BMW 323 Series

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