Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > General > General Discussion
User Name
Password


Welcome to Maxbimmer.com!

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!

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-11-2004, 05:53 PM   #1
Marecar
2nd Gear Member
 
Join Date: Jan 2003
Location: Toronto
Posts: 297
Send a message via ICQ to Marecar
Engine Misfire question

My buddy has a problem with his 2000 328I

on a cold start engine will rev at 1000 RPM and all of a sudden it will rev up to 2000 and drop to 500 with out pressing the gas. while its going from 2000 to 500 all the lights go dim like the batery dies and it will stall and goes back up again, then does this all over again.
he hooked it up to a computer in a shop and it says cylinder5 missfirebut when he changes the sparkplug it does the same thing.
Any suggestions?
oh yea he took it to the bmw dealership and they say its all good.
__________________
Speed never killed anyone, its the sudden stops that hurt!!!
Marecar is offline   Reply With Quote
Old 02-11-2004, 05:55 PM   #2
MorningCruiser
6th Gear Member
 
MorningCruiser's Avatar
 
Join Date: Nov 2003
Location: Kitchener, ON
Posts: 1,633
If BMW says it's all good either they're lying or it's true...

Has he tried changing spark plug wires?
MorningCruiser is offline   Reply With Quote
Old 02-11-2004, 06:34 PM   #3
Marecar
2nd Gear Member
 
Join Date: Jan 2003
Location: Toronto
Posts: 297
Send a message via ICQ to Marecar
It cant be good when the engine is going crazy !!!!! and theyr not lying eather cause when they checked it the checkengine light wasnt on.
I had a similar problem on my 2002. my problem ocurred only at start and when i shut it off and start again everything is fine and there is no check engine sign, and they told me the first time it was ok cause there was no check engine while it was in the shop.
he tried switching the cables and it still gave the same thing.
__________________
Speed never killed anyone, its the sudden stops that hurt!!!
Marecar is offline   Reply With Quote
Old 02-11-2004, 07:34 PM   #4
DbIiRrTdY
3rd Gear Member
 
Join Date: Jan 2003
Location: Toronto
Posts: 545
did your o2 sensors get replaced recently?
DbIiRrTdY is offline   Reply With Quote
Old 02-11-2004, 08:54 PM   #5
djcontra
Gets Blown Daily
 
djcontra's Avatar
 
Join Date: Jan 2002
Location: Scarghetto
Posts: 6,129
Send a message via ICQ to djcontra Send a message via MSN to djcontra Send a message via Yahoo to djcontra
It's probably either the ignition coil going bad, or the crank position sensor.
I had the same problem on my car, it would either feel like it's stumbling upon acceleration, or sometimes during driving, the car would just die for no reason.
I had to replace both because both items went bad at the same time on my car, but both can cause similar problems. If the car doesn't die, or stall on it's own, I'd blame the ignition coil first.
__________________

'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)


Last edited by djcontra; 02-11-2004 at 08:57 PM.
djcontra is offline   Reply With Quote
Old 02-11-2004, 10:46 PM   #6
mpower1226
6th Gear Member
 
mpower1226's Avatar
 
Join Date: Jun 2002
Location: Toronto
Posts: 2,902
it could be number of things but, two things that comes to my mind are ignition coil wires going bad and/or spark plug.

I had a similar experience and it was a spark plug being cracked.(cheap shit!!!) I changed rite away, the problem gone
mpower1226 is offline   Reply With Quote
Old 02-12-2004, 01:28 AM   #7
Marecar
2nd Gear Member
 
Join Date: Jan 2003
Location: Toronto
Posts: 297
Send a message via ICQ to Marecar
thanks guys
__________________
Speed never killed anyone, its the sudden stops that hurt!!!
Marecar is offline   Reply With Quote
Reply

Thread Tools
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

Forum Jump


All times are GMT -4. The time now is 03:43 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.