check engine - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-23-2004, 07:55 PM   #1 (permalink)
n00b
 
Join Date: Aug 2004
Car:
Posts: 1
Photos:
maru is an unknown quantity at this point
i have a bmw 325i 1991 2-door automatic. my check engine light comes on and stays on until i reset it by disconnecting the battery.
i have noticed that the light only comes on under the following conditions.

1. any time my rpm goes over 3000 rpm - this can be during acceleration or if i am cruising on the highway.

2. whenever i suddenly depress the accelerator... such as when i want to make a powerful take-off from stand-still.

moments before the check engine light comes on, the motor completely misfires, almost stalls and then comes back to life. after the check engine warning light is on the problem disappears....i think monotronic goes into some default mode because the car chews gasoline bad until i reset the light.

after reseting the light, if i make a gradual take-off or dont exceed 3000 rpm the motor does not misfire and the light never comes on.

the motor idles very well. i have changed all the hoses and clips to eliminate air leaks. i changed my spark plugs to bmw dealer recommended. i changed the mass air-flow meter. i changed the oxygen sensor. i re-adjusted the throttle position sensor. i tested the idle air stabilizer and the specs are within those recommended in the bentley manual. i changed the fuel filter, air filter and even the oil and oil filter.

HELP!!
maru is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Buying 1997 Bmw 318i - Need Your Help! newbmw 3-Series (E36) 7 09-06-2005 08:04 PM
Annoying check engine and lighting problems Skipjacks M-Series (M1, M3, M5, M6) 1 08-30-2004 10:01 AM
BMW P83 Engine triggrhaapi Bimmer Talk/Motorsports Talk 0 07-21-2003 02:03 PM
service questions thamindzzeye 3-Series (E36) 4 04-30-2003 02:40 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 11:12 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.