bmw diagnostic how-to? - 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 (E46, E90)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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 12-19-2010, 03:20 AM   #1 (permalink)
n00b
 
Join Date: May 2009
Location: los angeles
Car: 1994 325Ci (Cabriolet)
Posts: 15
Photos:
bavareze is on a distinguished road
Send a message via Yahoo to bavareze Send a message via Skype™ to bavareze
bmw diagnostic how-to?

Hello,

I have a '99 323i with 170k miles and there are some problems that caused the Check Engine light to stay on.

I read the codes with a standard OBD2 reader and I got:
P0735 gear 5 incorrect ratio
P1189 and P1250 something related to air/fuel ratio.

questions:

1. what kind of tool should I use to get more in-deep information about what is going on, beyond what the OBD2 protocol is able to tell? For VW I have a product named VAG-COM that is able to diagnose all car systems, not only engine related. I would like to have something like that for my BMW. I found many products on eBay like Carsoft, Ediabas etc with prices ranging from $20 to $500. Which one has a good price/quality?

2. what might be wrong with my car? air flow meter? oxygen sensor? what's the part that fails usually on these cars?

thanks,
Radu
bavareze is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-19-2010, 03:54 AM   #2 (permalink)
n00b
 
Join Date: May 2009
Location: los angeles
Car: 1994 325Ci (Cabriolet)
Posts: 15
Photos:
bavareze is on a distinguished road
Send a message via Yahoo to bavareze Send a message via Skype™ to bavareze
just to make myself clear: car runs perfectly, no misfires, no rough idling, very good acceleration.
bavareze is offline   Reply With Quote
Old 12-19-2010, 04:48 AM   #3 (permalink)
n00b
 
Join Date: May 2009
Location: los angeles
Car: 1994 325Ci (Cabriolet)
Posts: 15
Photos:
bavareze is on a distinguished road
Send a message via Yahoo to bavareze Send a message via Skype™ to bavareze
more testing, more problems:

besides P1189 and P1250, now I also have P1188 and misfires on cyl 3, 4 and 5.

and a possible cause : IAT is listed in my OBD2 live data section at 105F, while in dash the outside temp is 51F (and it's cold). Aren't these two supposed to be close one to each other?
bavareze is offline   Reply With Quote
Old 01-06-2011, 02:32 PM   #4 (permalink)
n00b
 
Join Date: Jan 2011
Location: LOS ANGELES CULVER CITY
Car: 97 528I
Posts: 6
Photos:
bugra is on a distinguished road
Exclamation

I can help you to solve,locate your problem.
we can meet somewhere close to culver city

Last edited by bugra; 01-06-2011 at 02:34 PM.
bugra is offline   Reply With Quote
Old 01-06-2011, 08:43 PM   #5 (permalink)
1st Gear Member
 
theluis's Avatar
 
Join Date: May 2010
Location: Mesa Az
Car: 1995 BMW 325i 5 Speed
Posts: 219
Photos:
theluis is on a distinguished road
well ill try to help... the iat sensor is no a problem unless it is not responding also about the codes on the air/fuel ratio it sounds like an 02 sensor since u got misfires in the last three cylinders cus theres a o2 for 1 three cyl and another one for the last 3 wich is the ones your haveing problems with... the wierd thing is that there is usually a code for an o2 sensor code that is set for o2 sensors. if its not the o2 sensor id try an injector flush and id check the spark plugs... if you could provide more info on the codes and what it said exactly on the scan tool...
theluis is offline   Reply With Quote
Old 01-30-2011, 06:33 PM   #6 (permalink)
n00b
 
Join Date: May 2009
Location: los angeles
Car: 1994 325Ci (Cabriolet)
Posts: 15
Photos:
bavareze is on a distinguished road
Send a message via Yahoo to bavareze Send a message via Skype™ to bavareze
been very busy lately. but I purchased a bmw native tool, hopefully this will give me more in depth details compared to the OBD2. I will post my findings within 1 week.

thanks for helping!
bavareze is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)


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
BMW GT1 and BMW OPS diagnostic system with laptop Savage OEM Parts 0 06-02-2008 07:34 PM
BMW Carsoft 6.5 Diagnostic Interface Read/Reset/Erase codes Savage For Sale 6 05-16-2008 09:03 PM
Does My Car Have The Bmw Diagnostic System? 87E30is 3-Series (E21, E30) 5 06-24-2005 06:08 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 02:52 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.